32 Matching Annotations
  1. Last 7 days
    1. A 42-year-old man came to the emergency department with progressive dyspnea on exertion for 1 month. His medical conditions included type 1 diabetes mellitus (DM), age onset of 25 years old. The chest X-ray revealed a left homogeneous density compatible with pleural effusion. Thoracocentesis was subsequently performed and pleural fluid profile was consistent with metastatic effusion. Computed tomography of the chest and abdomen showed multiple bilateral pulmonary nodules accompanied with significant left pleural effusion and mediastinal lymphadenopathy. A 7.6-cm left renal mass (large arrow) with invasion to the left renal vein and a few small hypodense cysts at the right kidney were also showed along with a 3.4-cm cystic mass at the pancreatic head (small arrow) and diffuse pancreatic cysts with calcification (asterisk) (Figure A). Clear cell renal cell carcinoma was confirmed by renal biopsy. He received palliative treatment with pazopanib. After a meticulous review, he had a history of bilateral scrotal masses that had been diagnosed as benign cysts and underwent cyst removal. Review of ultrasonography of the right testis showed a thick wall cyst with papillary projection (asterisk) and some calcifications (Figure B). In addition, a solid mass with multiple tiny cysts resembling ductal ectasia of the rete testis was also found (Figure B). The similar sonographic findings were found at the left testis.

      PatientID: N/A

      KindredID: 1

      Case: M, 42Y0M, Ethnicity Unknown

      DiseaseAssertion: Assumed VHL

      FamilyInfo: Family history revealed an intracranial tumor in his brother, father, and grandfather.

      CasePresentingHPOs: HP:0006770; HP:0009715 (Clear cell renal cell carcinoma; Papillary cystadenoma of the epididymis)

      CaseHPOFreeText: Patient came to the emergency department at 42Y0M with progressive dyspnea on exertion for 1 month. X-ray revealed pleural effusion, thus thoracocentesis was performed. CT scan revealed a mass consistent with clear cell renal cell carcinoma, confirmed by a renal biopsy. He received palliative treatment with pazopanib. He previously had bilateral scrotal masses that were identified as benign cysts and surgically removed. Ultrasonogrophy of both testes revealed bilateral papillary cystadenomas of the epididymis (PCEs). Patient was previously diagnosed with diabetes mellitus (DM) at age 25. It was noted that the cause of insulin-dependent DM may be from chronic pancreatitis, rather than type 1 DM.

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: p.W88* (c.263G>A)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: 182978, https://www.ncbi.nlm.nih.gov/clinvar/variation/182978/

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: stop_gained

      CivicName: W88* (c.263G>A)

      MultipleGeneVariants: N/A

    1. In our study, group 5 represented the c.262T > C p.Trp88Arg mutation that included 21 patients from 2 families (Figure 4 and Table 3). Variability was observed in the mean age at onset for CHB and RCC, which were 41.1 ± 9.1 (range = 29–62) and 37.4 ± 12.9 (range = 23–65), respectively.

      PatientID: 9

      KindredID: 1 (group ID 5)

      Case: M, 51Y0M, Chinese

      DiseaseAssertion: assumed VHL

      CohortInfo: Clinical characteristics of 258 patients from 80 unrelated Chinese families were reported in this study. Grouped by the 21 mutations found, 2 families with 21 members total were described, and phenotypic information was given for this group.

      FamilyInfo: In family 1, 17 members were described. The first generation describes 5 members with the VHL mutation, each passing on the gene to further generations. Patient 9’s father and brother had this familial mutation. His one daughter had not been yet tested at the time of the study. See Fig 4 for family pedigree; Table 3 for details.

      CasePresentingHPOs: HP:0010797; HP:0005584 (hemangioblastoma, renal cell carcinoma)

      CaseHPOFreeText: He had CNS hemangioblastomas at 35Y and RCC at 42Y

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: p.W88R (c.262T>C)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: 496053 https://www.ncbi.nlm.nih.gov/clinvar/variation/496053/

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: missense_variant;transition

      CivicName: W88R (c.262T>C)

      MultipleGeneVariants: N/A

    1. Patient P2 A 42-year-old woman was referred to the Eye Clinic due to a lesion in OS. OD was normal. BCVA was 20/25, and a peripheral RCH with a macular pseudohole was observed at the fundoscopic examination (Figure 3). The tumor was treated using laser photocoagulation and required several treatment sessions. One week after the first laser session, the pseudohole progressed to a lamellar macular hole (LMH) and after some months, to a FTMH. BCVA worsened to 20/63 in 2012, and pars plana vitrectomy was successfully performed: The macular epiretinal membrane and internal limiting membrane were peeled. During follow-up, a retinal tear was detected (in 2014), and it was treated using a barrage laser. The last follow-up visit (in September 2019) revealed a good macular profile and RCH regression; BCVA in OS was 20/25. During the follow-up, OS did not develop lesions.

      PatientID: 2

      KindredID: 2

      Case: F, 52Y0M, Ethnicity Unknown

      DiseaseAssertion: VHL

      FamilyInfo: A family pedigree is provided. Both the mother and daughter of patient 2 were found to have the same mutation. Neither the 61-year-old mother, nor the 6-year-old daughter had RCHs. The mother had other tumours, which were not specified.

      CasePresentingHPOs: HP:0001737; HP:0031152 (Retinal capillary hemangioma; full-thickness macular hole)

      CaseHPOFreeText: The patient underwent a retinal examination at 42Y0M due to a lesion in her left eye. This eyes had 20/25 vision snd a peripheral retinal capillary hemangioma (RCH) was detected in this left eye and laser was performed. A week later it turned into a lamellar macular hole and she underwent a vitrectomy, her vision also got worse. In her follow up appointment in 2014, a retinal tear was detected and treated with laser. In 2019, the left eye did not develop any lesions (table 1).

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: Patient did not seem to have have any other tumours.

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: p.P192L (c.575C>T)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: 526677, https://www.ncbi.nlm.nih.gov/clinvar/variation/526677/

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: missense_variant; transition

      CivicName: P192L (c.575C>T)

      MultipleGeneVariants: N/Afa

  2. Nov 2026
    1. PatientID: 47 (Uncle)

      KindredID: 18

      Case: M, 39Y0M, Ethnicity Unknown

      DiseaseAssertion: Assumed VHL

      FamilyInfo: 11 members of this family tested positive for the c.712C>T/c.499C>T germline variant of the VHL gene. 14 members of this family were assumed to carry this variant due to family history/personal medical history. Members of this family range from asymptomatic to multi-organ involvement (pheochromocytoma, pancreatic and renal cysts/tumors and hemangioblastomas). The family was previously reported in PMID 3942913.

      CasePresentingHPOs: HP:0010797; HP:0009711 (Hemangioblastoma, Retinal capillary hemangioma)

      CaseHPOFreeText: This patient presented with CNS hemangioblastoma (30 and 42Y) and retinal angioma (26Y). Patient died at 39Y.

      CaseNotHPOs: HP:0005584; HP:0000077; HP:0001732; HP:0002666 (Renal cell carcinoma, Abnormality of the kidney, Abnormality of the pancreas, Pheochromocytoma)

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: 3942913 (some members of this family are previously reported (phenotypes only) but unable to match patients across papers with confidence)

      SupplementalData: Supplementary Table 1.

      Variant: N/A

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: Authors state that the c.712C>T germline familial variant of the VHL gene in this patient is “inferred from the family”. No genetic testing was done on this patient to confirm this. Being that this familial variant is out of bound with respect to the NM_000551.3 reference sequence, it was concluded that this variant is noted in the Latif et al. (1993) reference and was translated to c.499C>T (NM_000551.3).

      MutationType: N/A

      CivicName: N/A

      MultipleGeneVariants: N/A

    1. PatientID: 1

      KindredID: A (II-5)

      Case: M, 64Y0M, Ethnicity Unknown

      DiseaseAssertion: VHL

      FamilyInfo: The patient's mother (I:1) died of renal cell carcinoma at age 55. The patient had seven siblings. His brother (II:3) died of cerebellar hemangioblastoma at age 39 and another (II:11), also died of cerebellar hemangioblastoma at age 33. His sister (II:7) was found to carry the mutation and presented with renal cell carcinoma, hemangioblastoma, and pheochromocytoma. Another sister (II:13) who did not undergo genetic testing, presented with hemangioblastoma. Brother (II:1) died of unknown causes and another brother (II:9) was asymptomatic and did not undergo genetic testing. The patient had four children; one was asymptomatic (III:9), another (III:6), the third (III-7) had a retinal angioma had a hemangioblastoma, and a daughter (III-8) had pheochromocytoma. Patient III-8 is the only child from this family who underwent genetic testing and was found to carry the mutation. Some of his nieces and nephews presented with VHL related phenotypes and were found to harbour the mutation. Refer to Figure 1 for family pedigree and information regarding extended family members.

      CohortInfo: 10 VHL patients with renal cell carcinoma and a definite VHL family history.

      CasePresentingHPOs: HP:0010797, HP:0005584, HP:0009711, HP:0002666, HP:0000107 (hemangioblastoma, renal cell carcinoma, retinal capillary hemangioma, pheochromocytoma, renal cyst)

      CaseHPOFreeText: Diagnosed with renal cell carcinoma at age 42. Underwent radical nephrectomy of both the right and left side. He had five renal cell carcinomas and 15 renal cysts. The patient was on dialysis. He had a satellite lesion.

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: p.V170D (c.509T>A)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: 625256 https://www.ncbi.nlm.nih.gov/clinvar/variation/625256/

      CAID: N/A

      gnomAD: N/A

      VariantEvidence:N/A

      MutationType: missense_variant;transversion

      CivicName: V170D (c.509T>A)

      MultipleGeneVariants: N/A

    1. PatientID: 1

      KindredID: 1

      Case: M, 45Y0M, Ethnicity Unknown

      DiseaseAssertion: VHL

      FamilyInfo: It is stated that the eight VHL patients were selected from the group of familial VHL patients. Assuming there is family history.

      CohortInfo: Eight patients with VHL disease with pheochromocytoma, eight patients with MEN2 and pheochromocytoma, and 10 sporadic patients.

      CasePresentingHPOs: HP:0006748, HP:0010797, HP:0005584, HP:0009715, HP:0030405 (adrenal pheochromocytoma, hemangioblastoma, renal cell carcinoma, papillary cystadenoma of the epididymis, pancreatic endocrine tumour)

      CaseHPOFreeText: The patient had a left adrenal pheochromocytoma at age 42.

      CaseNotHPOs: HP:0008221 (Adrenal hyperplasia)

      CaseNotHPOFreeText: The patient did not have adrenomedullary hyperplasia.

      CasePreviousTesting: N/A

      PreviouslyPublished: Suspected to be, but not mentioned in paper. Paper says, the eight VHL patients were selected from the group of familial VHL patients withknown VHL germline mutations followed on a clinical protocol at the Urologic Oncology Branch, National Cancer Institute, National Institutes of Health (NIH).

      SupplementalData: N/A

      Variant: p.R161* (c.481C>T)

      CaseProblemVariantFreeText: N/A

      LegacyVariant: p.R161* (c.694C>T)

      ClinVarID: 2217 https://www.ncbi.nlm.nih.gov/clinvar/variation/2217/

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: stop_gained

      CivicName: R161* (c.481C>T)

      MultipleGeneVariants: N/A

    1. VHL mutation c.239G>T; p.(Ser80Ile), which is associated with a severe phenotype

      PatientID: 1

      KindredID: 1

      Case: F, 44Y0M, Ethnicity Unknown

      DiseaseAssertion: assumed VHL

      FamilyInfo: The patient has a notable family history. Her eldest brother had multiple RCCs in both kidneys, bilateral cerebellar hemangioblastomas, and pheochromocytoma in his left adrenal gland (see Patient 2). Her daughter also underwent cortex-sparing adrenalectomies for bilateral pheochromocytomas as well as hemangioblastoma resection in her left cerebellum at age of 19 years, although no testing for VHL was stated.

      CasePresentingHPOs: HP:0006748, HP:0030405, HP:0006880, HP:0000107, HP:0005584 (adrenal pheochromocytomas, pancreatic endocrine tumour, cerebellar hemangioblastoma, renal cyst, renal cell carcinoma)

      CaseHPOFreeText: Patient diagnosed at age 29 with bilateral pheochromocytomas when she presented with severe hypertension and two large masses (greater than 6 cm) in her bilateral adrenal glands. At 38 years old, she underwent a resection for a mass found on her pancreas, with pathological analysis of the mass revealing a pancreatic neuroendocrine tumor. At 42 years old, a follow-up CT scan revealed two heterogeneous contrast-enhanced masses, one on the right kidney and one on the left adrenal gland.

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: p.S80I (c.239G>T)

      LegacyVariant: N/A

      ClinVar: 625229 https://www.ncbi.nlm.nih.gov/clinvar/variation/625229/

      CAiD: CA16621914 http://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.239G%3ET

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: missense_variant; transversion

      CivicName: S80I (c.239G>T)

      MultipleGeneVariants: N/A

    1. PatientID: 20

      KindredID: 10

      Case: M, 42Y0M, Indian

      DiseaseAssertion: VHL

      FamilyInfo: No relevant family history.

      CohortInfo: This retrospective study was conducted at Department of Endocrinology of a tertiary care health centre in Western India. Patients presented to our institute between 2008 and 2016 were included in the study. During the study period a total of 33 patients were suspected to have VHL syndrome based on clinical features among whom 31 patients were found to have mutation in VHL gene. All patients are of Asian Indian descent.

      CasePresentingHPOs: HP:0002666; HP:0010797 (Pheochromocytoma, Hemangioblastoma)

      CaseHPOFreeText: Unilateral pheochromocytoma.

      CaseNotHPOs: HP:0009711; HP:0001737; HP:0005584; HP:0030405; HP:0002668 (Retinal capillary hemangioma, Pancreatic cysts, Renal cell carcinoma, Pancreatic endocrine tumor, Paraganglioma)

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: p.L163F (c.487C>T)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: 480772, https://www.ncbi.nlm.nih.gov/clinvar/variation/480772/

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: missense_variant;transition

      CivicName: L163F (c.487C>T)

      MultipleGeneVariants: N/A

    1. A 42-year-old man was admitted to our Urology unit with a one-year history of repeating left lumbago. Ten years ago, this patient received gamma knife treatment for cerebral hemangioblastomas. There was no history of hypertension disease (blood pressure at admission: 134/79mmHg). Eyesight and fundus examinations were normal.Prior to the operation, levels of blood creatinine and urea nitrogen were normal (82 μmol/L and 6.05 mmol/L, respectively). However, the routine urine test showed an elevated level of RBCs with 9,298 cells per liter. Common tumor markers such as AFP, CEA, and PSA were normal. Magnetic resonance (MR) of the abdomen showed multiple solid lesions in the bilateral kidneys (53 mm was the largest diameter) with enhanced density after contrast, multilocular renal cysts, a right adrenal nodule, multiple cysts and a solid lesion in the pancreas (42.7 mm was the largest diameter), and multiple cysts in the liver with 2 highly vascular lesions located in the S7/8 and S2 sections (Fig. 1A and 1B). Special tests for adrenal lesions included plasma cortisol, renin angiotensin aldosterone, and urinary VMA, which were normal. The patient underwent 3 consecutive surgeries. The first surgery was partial nephrectomy that removed most of the tumors in the right kidney. Three weeks later, the second surgery removed most of the tumors on the surface of the left kidney, and radiofrequency ablation guided by ultrasound aided in treating the inner tumors. Two weeks after the second surgery, the patient received an emergency nephrectomy on the left side kidney due to a severe hemorrhage. Open in a separate windowFigure 1.Imaging findings of 2 patients. (A) and (B) Abdomen magnetic resonance (MR) of the brother (II:1) showed a solid lesion (1) and multiple cysts (2) in the pancreas; liver vascular lesion located in the S7/8 section (3); solid lesions (4) and multilocular renal cysts (5) in the kidney; and a right adrenal nodule (6). (C) Scrotum magnetic resonance (MR) of the brother (II:1) showed a malignant tumor in the right side epididymis (arrow). (D) Abdomen computed tomography (CT) of the sister (II:6) showed multiple cysts in the pancreas (7) and a right adrenal nodule (8).Pathologic reviews and an immunohistochemical test (IHC) were performed to confirm the diagnosis. Tumor sections from the right side kidney stained with hematoxylin and eosin (H&E) showed sheet-like, solid clear cells in the tumor lesions and cysts lined by clear cells with uniform nuclei in some areas (Fig. 2A and 2B). The pathological manifestations confirmed ccRCC concurrent with simple renal cysts. The left side kidney showed multilocular cysts lined by clear cells with plenty of plasm and high nuclear to cytoplasmic ratios by microscopy. Clusters of clear cells were present in the septal walls (Fig. 2C), and mcRCC was confirmed pathologically. The IHC staining of the bilateral kidney tumor was positive for CD10, CK and Vim (data not shown). Open in a separate windowFigure 2.Pathological images of the brother. (A) Clear cell renal cell carcinoma (ccRCC) from the right kidney. The tumor consists of sheet-like, solid clear cells (H&E 40×).The image in the yellow-boxed area displays part (B). Multilocular renal cysts with clear cell renal carcinoma from the right kidney. The yellow-boxed area displays a renal cyst that is lined by a single-layer of clear cells with uniform nuclei (H&E 100×). Additionally, the green-boxed area displays part of the ccRCC with sheet-like, solid clear cells. (C) Cystic renal cell carcinoma from the left kidney. Cysts are lined by clear cells with uniform nuclei. Clusters of clear cells are present in the septal walls (H&E 40×). The image in the yellow-boxed area displays the aggregates of similar-appearing clear cells scattered without permeating the septa and forming solid nodules (H&E 100×).During this patient's hospitalization, a mass was palpable in his right side scrotum, which had no tenderness, redness or itching. The scrotum MR suspected a malignant tumor on the right side epididymis (Fig. 1C). However, the patient refused to accept a biopsy of this mass.

      PatientID: II:1 (proband)

      KindredID: 1

      Case: M, 42Y0M, Chinese

      DiseaseAssertion: VHL

      FamilyInfo: The proband presented with VHL Type 2B. Sister presented with features of VHL Type 2A including cerebral hemangioblastomas, a right adrenal nodule, multiple cysts in the pancreas, multiple cysts in the liver, two brain lesions. The younger brother and their deceased father had hemangioblastomas in the central nervous system and ocular diseases, respectively. Despite having no information of detailed clinical data, it is reasonable to assume that they had VHL diseases. The father was also blind, but the reasons are unknown. The mother had no history of disease. Pedigree: see Figure 3.

      CasePresentingHPOs: HP:0010797; HP:0005584; HP:0006770; HP:0030421 (Hemangioblastoma, Renal cell carcinoma, Clear cell renal cell carcinoma, Epididymal neoplasm)

      CaseHPOFreeText: Ten years prior (at the age of 32), the patient received gamma knife treatment for cerebral hemangioblastomas. Magnetic resonance (MR) of the abdomen showed multiple solid lesions in the bilateral kidneys, multilocular renal cysts, a right adrenal nodule, multiple cysts and a solid lesion in the pancreas, and multiple cysts in the liver. The pathological manifestations confirmed ccRCC concurrent with simple renal cysts. The left side kidney showed multilocular cysts lined by clear cells. Pathology confirmed the presence of clusters of clear cells. mcRCC was confirmed pathologically. Scrotum MR suspected a malignant tumor on the right side epididymis.

      CaseNotHPOs: HP:0000822; HP:0100631 (Hypertension, Neoplasm of the adrenal gland)

      CaseNotHPOFreeText: No history of hypertension disease. Common tumor markers such as AFP, CEA, and PSA were normal. Special tests for adrenal lesions included plasma cortisol, renin angiotensin aldosterone, and urinary VMA, which were normal.

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: c.340+5G>C

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: 36901, https://www.ncbi.nlm.nih.gov/clinvar/variation/36901/

      CAID: CA020288, http://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/by_caid?caid=CA020288

      gnomAD: 0.01119, https://gnomad.broadinstitute.org/variant/3-10183876-G-C

      VariantEvidence: Direct sequencing of DNA strands revealed 2 recurrent mutations of c.256C > T (p.P86S) and c.340 + 5G > C. Haplotype construction displayed that the c.256C > T (p.P86S) mutation in cis with c.340 + 5G > C were located on the disease haplotype. Bioinformatics analysis revealed that this mutation might severely destabilize the hydrophobic core of pVHL and cause VHL manifestations. This variant’s large allele frequency means this is likely non disease causing (not deleterious).

      MutationType: splice_site_variant

      CivicName: P86S (c.256C>T) and Splice Region (c.340+5G>C)

      MultipleGeneVariants: Germline, VHL, c.256C>T (p.Pro86Ser)

  3. Oct 2026
    1. A 42-year-old female was admitted with complaints of a 15-day history of intermittent headaches and dizziness, without nausea and vomiting. Computed tomography (CT) revealed a giant mass lesion with mixed density in the right CPA region along with the destroyed petrous bone (Figure 1A), and a low density space-occupying lesion in the left cerebellar hemisphere. No abnormal physical and laboratory examination including abdominal CT, were found except for a past history of appendicitis excision and cesarean section and the impairment of right hearing resulting from otitis media in childhood. Cranial magnetic resonance imaging (MRI) described two tumors that were 4 × 3 × 3 cm in size in the right CPA region with mixed-signal intensity on T1, T2-weighted images and heterogeneous contrast enhancement; and 4.1 × 2.5 × 3.0 cm in size in the left cerebellar hemisphere with being obviously cystic change (Figure 1B-E). The boundary of two lesions were relatively clear from surrounding parenchyma.Open in a separate windowFigure 1Radiologic characterization of endolymphatic sac tumor and hemangioblastoma. A: CT imaging demonstrated a destroyed petrous bone involving the right mastoid and the middle ear. B-E: MR scan showed two giant masses co-existing in the posterior cranial fossa. The right one in the CPA was irregular, heterogeneous on T1/T2-weighted images as well as heterogeneous contrast enhancement, the left lesion was shown with solid and cyst change in cerebellar hemisphere. F: MRI scan after the second operation showed totally resection of both lesions.Operation and pathological findingsBoth tumors were completely removed via right and left retrosigmoid sinus craniotomy respectively within 25 days. During the first operation, lesion with demarcating from normal cerebellar tissue and invading part of petrous bone were found. The origin of the tumor from petrous bone could be apparently observed. In the second operation, the brown cyst fluid associated with old hemorrhage and soft solid nodule were seen. Under a microscope observation after the first surgery, intense vascularization of the tumor and the obviously primarily cystic architecture were observed. The cystic architecture filled with colloid-like material. Most of them were lined by a single layer of flattened epithelial cells, few covered by a single layer of cuboidal to columnar cells (Figure 2A-D). Immunohistochemical staining demonstrated vascular cells positive reactivity for CD31 (Figure 3A) and CD34 (Figure 3C), which were mistaken for the tumor cells at the initial diagnosis. Subsequently, further immunohistochemical staining showed positive reactivity for PAS (Figure 3B), epithelial membrane antigen (EMA) (Figure 3D), NSE and cytokeratin (CK) but negative for D2-40 and S-100. As to another specimen, histological examination shown round-to-oval nuclei and abundant clear cytoplasms in most of cells (Figure 4). Immunohistochemical staining confirmed hemangioblastoma.

      PatientID: 1

      KindredID: 1

      Case: F, 42Y0M, Ethnicity Unknown

      DiseaseAssertion: VHL

      FamilyInfo: N/A

      CasePresentingHPOs: HP:0010797; HP:0030393; HP:0002315; HP:0002321 (Hemangioblastoma, Endolymphatic sac tumor, Headache, Vertigo)

      CaseHPOFreeText: Admitted with complaints of a 15-day history of intermittent headaches and dizziness, without nausea and vomiting. Computed tomography (CT) revealed a giant mass lesion with mixed density in the right CPA region along with the destroyed petrous bone, and a low density space-occupying lesion in the left cerebellar hemisphere. Cranial MRI described two tumors in the right CPA region and in the left cerebellar hemisphere. A classic radiological feature of hemangioblastoma was observed in the left cerebellar hemisphere which was supported by post-operative biopsy.

      CaseNotHPOs: HP:0002012 (Abnormality of the abdominal organs)

      CaseNotHPOFreeText: No abnormal physical and laboratory examination, including abdominal CT, were found.

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: p.Y98Afs*37 (c.282_291dup)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: CA2573050500, https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/by_canonicalid?canonicalid=CA2573050500

      gnomAD: N/A

      VariantEvidence: 291st site of Exon 1 was insertion of 10 nucleotides (GCCGCAGCCC).

      MutationType: plus_1_frameshift_variant; duplication

      CivicName: p.Y98Afs (c.282_291dup)

      MultipleGeneVariants: N/A

    1. 842Fnt 393 del G, codon 137 exon 1, stop

      PatientID: 8

      KindredID: 2656

      Case: F, 42Y0M, Ethnicity Unknown

      DiseaseAssertion: VHL

      FamilyInfo: Another member of her family (patient 7) also presented with pancreatic endocrine tumour.

      CasePresentingHPOs: HP:0030405 (pancreatic endocrine tumour)

      CaseHPOFreeText: She presented with one radiologic pancreatic neuroendocrine tumors.

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: p.V62Cfs*5 (c.180delG)

      LegacyVariant: p.V62Cfs*5 (c.393delG)

      CaseProblemVariantFreeText: N/A

      ClinVar: 182986 https://www.ncbi.nlm.nih.gov/clinvar/variation/182986/

      CAID: CA020069 http://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.180delG

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: minus_1_frameshift_variant

      CivicName: V62Cfs*5 (c.180delG)

      MultipleGeneVariants: N/A

    1. PatientID: 271

      KindredID: 105

      Case: F, 42Y0M, Chinese

      DiseaseAssertion: VHL

      FamilyInfo: N/A

      CasePresentingHPOs: HP:0001737; HP:0001732; HP:0010797 (Pancreatic cysts, Abnormality of the pancreas, Hemangioblastoma)

      CaseHPOFreeText: The proband presented at age 48 with renal cell carcinoma, multiple pancreatic cysts/tumors, and pheochromocytoma.

      CaseNotHPOs: HP:0009711; HP:0005584; HP:0002666 (Retinal capillary hemangioma, Renal cell carcinoma, Pheochromocytoma)

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: This cohort was also published in a later paper by Wang et al., 2018 (PMID: 29330336).

      SupplementalData: Patient and family genotype-phenotype information is listed in Supplementary Table 1.

      Variant: Exon 2 Deletion (c.341-?_463+?del)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 2 Deletion

      MultipleGeneVariants: N/A

  4. Nov 2025
  5. Dec 2024
  6. Nov 2024
  7. Mar 2021
    1. Cells reconstituted with WT-PALB2 showed substantially less sensitivity to olaparib than cells expressing p.A1025R and p.I944N (Fig. 4a). Similar results were observed for cisplatin treatment, although the difference in sensitivity was less pronounced (Fig. 4b). p.L24S, p.L1070P, and p.L35P were also associated with greater sensitivity to olaparib (Fig. 4c) and cisplatin (Fig. 4d) than WT-PALB2.

      AssayResult: 0.01 µM: 85; 0.1 µM: 40; 0.8 µM: 20; 1 µM: 13

      AssayResultAssertion: Abnormal

      Approximation: Exact cisplatin concentrations and assay result values not reported; values estimated from Figures 4b and 4d.

    2. Cells reconstituted with WT-PALB2 showed substantially less sensitivity to olaparib than cells expressing p.A1025R and p.I944N (Fig. 4a). Similar results were observed for cisplatin treatment, although the difference in sensitivity was less pronounced (Fig. 4b). p.L24S, p.L1070P, and p.L35P were also associated with greater sensitivity to olaparib (Fig. 4c) and cisplatin (Fig. 4d) than WT-PALB2.

      AssayResult: 0.01 µM: 50; 0.08 µM: 40; 0.8 µM: 20; 8 µM: 15

      AssayResultAssertion: Abnormal

      Approximation: Exact Olaparib concentrations and assay result values not reported; values estimated from Figures 4a and 4c.

    3. Results for individual PALB2 variants were normalized relative to WT-PALB2 and the p.Tyr551ter (p.Y551X) truncating variant on a 1:5 scale with the fold change in GFP-positive cells for WT set at 5.0 and fold change GFP-positive cells for p.Y551X set at 1.0. The p.L24S (c.71T>C), p.L35P (c.104T>C), p.I944N (c.2831T>A), and p.L1070P (c.3209T>C) variants and all protein-truncating frame-shift and deletion variants tested were deficient in HDR activity, with normalized fold change <2.0 (approximately 40% activity) (Fig. 1a).

      AssayResult: 1.5

      AssayResultAssertion: Abnormal

      StandardErrorMean: 0.16

    1. Most Suspected Brugada Syndrome Variants Had (Partial) Loss of Function

      AssayResult: 103.2

      AssayResultAssertion: Normal

      ReplicateCount: 33

      StandardErrorMean: 12.7

      Comment: This variant had normal function (75-125% of wildtype peak current, <1% late current, no large perturbations to other parameters). These in vitro features are consistent with non-disease causing variants. (Personal communication: A. Glazer)

  8. Feb 2021
  9. Sep 2020