222 Matching Annotations
  1. Jun 2026
    1. 15-year-old Chinese boy

      Case#: 15-year-old Chinese boy

      DiseaseAssertion: Patient was diagnosed with systemic lupus erythematosus (SLE) at a young age and was recently found to carry heterozygous mutations in PIK3CD. Diagnoses: Activated PI3Kδ syndrome

      FamilyInfo: Family history revealed that his mother died of gastric cancer. Whole exome sequencing was performed in patient and in his father, when he was at the age of 15 and the PIK3CD gene was found to exhibit good coverage.

      CasePresentingHPOs: HP:0002725, HP:0005425, HP:0032218, HP:0002716, HP:0000093, HP:0020072, HP:0000790, HP:0001882, HP:0001903, HP:0003493, HP:0025289, HP:0001744, HP:0004322, HP:0550004, HP:0001873, HP:0003565, HP:0011227, HP:0020026, HP:0032230, HP:0002110, HP:6001383, HP:0033726, HP:0033493, HP:0012574

      CaseHPOFreeText: Serum level of complements was low, such as C3, C4, and CH50. Serum level of IgM and IgE was elevated, but IgG and IgA was normal. Lung CT scan showed partial consolidation of left upper lung with bronchiectasis and left upper bronchial stenosis. Renal biopsy was also done because of persistent hematuria and proteinuria, and it displayed moderately increased mesangial matrix and mesangial hypercellularity under the light microscope; subepithelial deposits was noted, and some mesangial changes may be present as seen in electron microscopy. Immunofluorescence was positive for C1q, C3, IgG, IgM, and Fb (Fig. 2). The patient was given oral prednisolone and hydroxychloroquine combined with mycophenolate mofetil. Six months later, the level of complement was restored to normal, hematuria and proteinuria disappeared, and liver function returned to normal. He was currently receiving intravenous immunoglobulin in association with hydroxychloroquine, low-dose prednisolone, and mycophenolate mofetil, with a good efficacy.

      CasePreviousTesting: NR

      GenotypingMethod: Whole exome sequencing, Sanger sequencing

      PreviouslyPublished: No

      Variant: NM_005026.5:c.3061G>A

      ClinVar: 88675

      gnomAD: chr1-9726972-G-A

      SupplementalData: Figure 1, 2, 3

    1. A 15-year-old girl,

      Case#: 15-year-old girl, ethnicity not specified DiseaseAssertion: The patient is asserted to have "CTLA-4 deficiency" FamilyInfo: CasePresentingHPOs: HP:0002315 (Headaches), HP:0002205 (Recurrent respiratory infections), HP:0007359 (Focal-onset seizure), HP:0001744 (Splenomegaly), HP:0002028 (Chronic diarrhea), HP:0005231 (Chronic gastritis), HP:0002875 (Exertional dyspnea), HP:0003139 (Panhypogammaglobulinemia) CaseHPOFreeText: Brain MRI showed multiple inflammatory lesions. CSF analysis showed elevated white cell count and protein levels. Figure 2 provides overview of clinical history and medical management. CaseNotHPOs: CaseNotHPOFreeText: Infectious diseases were excluded, including CMB, EBV, HIV, and mycobacteria. CasePreviousTesting: GenotypingMethod: Patient was tested via a targeted NGS panel. PreviouslyPublished: Not previously published. Variant: The patient harbors the NM_005214.5(CTLA4): c.394G>A (p.Glu132Lys) variant in the heterozygous state. ClinVar: 662200 gnomAD: This variant was not found in gnomAD v4.1.0 SupplementalData: Supplementary Table S1 contains full immunological workup.

    1. Patient 1 (P1)

      Case#: Patient 1 (P1) is a 24-year-old Chinese female.

      DiseaseAssertion: Patients are asserted to have "CTLA4 haploinsufficiency (CTLA-4 h).

      FamilyInfo: The patient's father carries the same CTLA4 variant as the patient but has been asymptomatic. No other family history reported.

      CasePresentingHPOs: HP:0031245 (Productive cough), HP:0002105 (Hemoptysis), HP:0001878 (Hemolytic anemia), HP:0006532 (Recurrent pneumonia), HP:0004313 (Decreased circulating immunoglobulin concentration, HP:0033608 (Pulmonary nodule), HP:0002716 (Lymphadenopathy), HP:0001596 (Alpecia),

      CaseHPOFreeText: Patient first presented at age 14 with respiratory symptoms. She was hospitalized at age 16 with hemolytic anemia and recurrent pulmonary infections. Lab work showed hypogammaglobinemia. Chest CT showed scattered solid and ground-glass density nodules bilaterally in the lungs, Lung biopsy demonstrated lymphocytic infiltration and siderophages. Treatment with corticosteroids achieved temporary remission, but the patient relapsed with dose tapering. She developed Evans syndrome, alopecia, and skin lesions. Disease stabilized with weekly subcutaneous abatacept (125mg) and the interval was subsequently extended to once every 4 weeks.

      CaseNotHPOs: HP:0003493 (Antinuclear antibody positivity), HP:0032230 (Cytoplasmic antineutrophil antibody positivity).

      GenotypingMethod: Genotyping was performed by whole exome sequencing.

      PreviouslyPublished: No prior article is known to contain information on the same proband.

      Variant: The patient is heterozygous for the NM_005214.4(CTLA4):c.155G>T(p.Gly52Val) variant.

      ClinVar: 1420586

      gnomAD: The variant was not found in gnomAD v4.1.1.

      SupplementalData: No supplemental data provided.

    2. Patient 2 (P2)

      Case#: Patient 2 (P2) is a 23-year-old Chinese male.

      DiseaseAssertion: Patients are asserted to have "CTLA4 haploinsufficiency (CTLA-4 h).

      FamilyInfo: The patient's father and oldest sister are both positive for the same CTLA4 variant. Both the parents and two older sisters are asymptomatic. The TNFRSF13B variants were not found in the parents or sisters.

      CasePresentingHPOs: HP:0002254 (Intermittent diarrhea), HP:4000055 (Intestinal inflammation), HP:0002582 (Atrophic gastritis), HP:0004313 (Decreased circulating immunoglobulin concentration), HP:0030167 (Antimitochondrial antibody positivity)

      CaseHPOFreeText: Patient presented at 12 years old with intermittent diarrhea, predominantly mushy stools with ocassional watery stools. Colonoscopy at age 21 demonstrated histopathological evidence of acute and chronic inflammation. Gastroscopy showed chronic atrophic gastritis and duodenitis. Treatment with intravenous immunoglobulin and biweekly subcutaneous abatacept (125 mg) led to clinical improvement.

      CaseNotHPOs: HP:0003493 (Antinuclear antibody positivity), HP:0032230 (Antineutrophil antibody positivity)

      CasePreviousTesting: None reported.

      GenotypingMethod: Genotyping was performed via whole exome sequencing.

      PreviouslyPublished: No prior article is known to contain information on the same proband.

      Variant1: The patient is heterozygous for the NM_005214.4 CTLA4):c.538C>T (p.Leu180Phe) variant.

      CAID1: CA350139042

      gnomAD1: This variant has a minor allele frequency of 0.0001370 in gnomAD v4.1.1. (https://gnomad.broadinstitute.org/variant/chr2-203871458-C-T?dataset=gnomad_r4).

      Variant2: The patient is heterozygous for the NM_012452.3(TNFRSF13B):c.83G>A variant.

      ClinVar2: 1063279

      gnomAD2: This variant has a minor allele frequency of 0.00009130 in gnomAD v4.1.1. (https://gnomad.broadinstitute.org/variant/chr17-16952562-C-T?dataset=gnomad_r4)

      Variant3: The patient is heterozygous for the NM_012452.3(TNFRSF13B):c.716C>T

      ClinVar3: 471370

      gnomAD3: This variant has a minor allele frequency of 0.0002962 in gnomAD v4.1.1. (https://gnomad.broadinstitute.org/variant/chr17-16939713-G-A?dataset=gnomad_r4)

      SupplementalData: There is no supplemental data.

    3. Patient 3 (P3)

      Case#: Patient 3 (P3) is a 20-year-old Chinese female.

      DiseaseAssertion: Patients are asserted to have "CTLA4 haploinsufficiency (CTLA-4 h).

      FamilyInfo: The patient's brother died at age 15 from pancytopenia. The patient's mother was diagnosed with large granular lymphocytic leukemia. Patient's mother (Patient 4) also harbors the same CTLA4 variant as the patient. Authors do not indicate if patient's brother had genetic testing.

      CasePresentingHPOs: HP:0001744 (Splenomegaly), HP:0001369 (Arthritis), HP:0020062 (Decreased hemoglobin concentration), HP:0011873 (Abnormal platelet count), HP:0002254 (Intermittent diarrhea), HP:0001876 (Pancytopenia), HP:0020026 (Positive Coombs test)

      CaseHPOFreeText: Patients symptoms onset at 9 years old with chronic eczema, Evans syndrome, and splenomegaly. Initially responded well to corticosteroids and IV Ig, but relapsed after steroid tapering. She developed polyarthritis at age 16, diagnosed as juvenile idiopathic arthritis. She also developed photosensitive rashes. She was hospitalized due to pancytopenia and heavy vaginal bleeding. Anti-kertain antibody (AKA) and antiperinuclear factor were negative. Treatment with subcutaneous abatacept injections (125mg) resolved joint pain and brought hemoglobin and platelet counts to normal range.

      CaseNotHPOs: HP:0003493 (Antinuclear antibody positivity), HP:0034092 (Anti-cyclic citrullinated peptide antibody positivity), HP:0002923 (Rheumatoid factor positive),

      CasePreviousTesting: None reported.

      GenotypingMethod: Genotyping was performed via whole exome sequencing.

      PreviouslyPublished: No prior article is known to contain information on the same proband.

      Variant: The patient is heterozygous for the NM_005214.4 CTLA4):c.347T>A (p.Ile116Asn) variant.

      ClinVar: 2430678

      gnomAD: The variant was not found in gnomAD v4.1.1.

      SupplementalData: There is no supplemental data.

    4. Patient 4 (P4)

      Case#: Patient 4 (P4) is a 60-year-old Chinese woman.

      DiseaseAssertion: Patients are asserted to have "CTLA4 haploinsufficiency (CTLA-4 h).

      FamilyInfo: Patient's daughter is Patient 3 and harbors the same CTLA4 variant.

      CasePresentingHPOs: HP:0001954 (Recurrent fever) HP:0011110 (Recurent tonsillitis), HP:0000155 (Oral ulcer), HP:0005558 (Chronic leukemia)

      CaseHPOFreeText: Patient's symptoms onset in childhood with recurrent fever and tonsillitis. She experienced recurrent oral ulcers starting around age 50. She was diagnosed with large granular lymphocytic (LGL) leukemia for which she was treated with long-term corticosteroids for three years. She is currently treated with oral cyclosporine.

      CaseNotHPOs: HP:0000988 (Skin rash)

      CaseNotHPOFreeText: Patient denied history of rash, dry mouth, or dry eyes.

      CasePreviousTesting: None reported.

      GenotypingMethod: Genotyping was performed via whole exome sequencing.

      PreviouslyPublished No prior article is known to contain information on the same proband.

      Variant: The patient is heterozygous for the NM_005214.4 CTLA4):c.347T>A (p.Ile116Asn) variant.

      ClinVar: 2430678

      gnomAD: The variant was not found in gnomAD v4.1.1

      SupplementalData: There is no supplemental data.

    5. Patient 5 (P5)

      Case#: Patient 5 (P5) is a 19-year-old Chinese female.

      DiseaseAssertion: Patients are asserted to have "CTLA4 haploinsufficiency (CTLA-4 h).

      FamilyInfo: The patients mother, who harbors the same CTLA4 variant reported a history of chronic urticaria, alopecia areata, and intermittent diarrhea for over 10 years.

      CasePresentingHPOs: HP:0001903 (Anemia), HP:0007418 (Alopecia totalis), HP:0002254 (Intermittent diarrhea), HP:0000964 (Eczematoid dermatitis), HP:0002716 (Lymphadenopathy), HP:0004818 (Paroxysmal nocturnal hemoglobinuria), HP:6000344 (Anti-intrinsic factor antibody positivity), HP:0000988 (Skin rash), HP:0004386 (Gastrointestinal inflammation), HP:0034839 (Lymphoid hyperplasia), HP:0040088 (Abnormal lymphocyte count), HP:0020062 Decreased hemoglobin concentration, HP:0025066 (Decreased mean corpuscular volume), HP:0025547 (Decreased mean corpuscular hemoglobin concentration)

      CaseHPOFreeText: Patient's symptoms onset at age 10. Gastrointestinal endoscopy showed chronic inflammation and lymphoid hyperplasia. Patient has been treated with subcutaneous injections of abatacept (125mg) with notable clinical improvement. Fine white hair has started to regrow on her scalp, eyebrows, and eyelashes, and facial skin shows mild scaling.

      CaseNotHPOs:

      CaseNotHPOFreeText: Autoimmune screening including antinuclear antibodies were negative.

      CasePreviousTesting: None reported.

      GenotypingMethod: Genotyping was performed via whole exome sequencing.

      PreviouslyPublished No prior article is known to contain information on the same proband.

      Variant: The patient is heterozygous for the NM_005214.4 CTLA4):c.151C>T (p.Arg51Ter) variant.

      ClinVar: 161109

      gnomAD: The variant was not found in gnomAD v4.1.1.

      SupplementalData: There is no supplemental data.

    6. Patient 6 (P6)

      Case#: Patient 6 (P6) is an 18-year-old Chinese male.

      DiseaseAssertion: Patients are asserted to have "CTLA4 haploinsufficiency (CTLA-4 h).

      FamilyInfo: Patient denied family history of inborn error of immunodeficiency. The patient's father harbors the same CTLA4 variant as the patient. No symptoms are reported in the patient's father.

      CasePresentingHPOs: HP:0001954 (Recurrent fever), HP:0012735 (Cough), HP:0002829 (Arthralgia), HP:0002113 (Pulmonary infiltrates), HP:0002716 (Lymphadenopathy), HP:0006532 (Recurrent pneumonia), HP:0004313 (Decreased circulating immunoglobulin concentration

      CaseHPOFreeText: MRI of knees showed patchy abnormal signals in the right femoral and lateral condylar regions suggestive of bone marrow edema, with surrounding soft tissue edema. Mild joint effusion and suprapatellar bursa fluid were also noted. Treatment with avatacept was started and at the six-month follow-up the patient reported clinical improvement. He had no fever or sputum production and symptoms of lymphadenopathy and joint pain had improved.

      CaseNotHPOs: HP:0001386 (Joint swelling), HP:0000988 (Skin rash), HP:0002014 (Diarrhea), HP:0003493 (Antinuclear antibody positivity), HP:0034092 (Anti-cyclic citrullinated peptide antibody positivity), HP:0002923 (Rheumatoid factor positive), HP:0032230 (Cytoplasmic antineutrophil antibody positivity)

      CaseNotHPOFreeText:

      CasePreviousTesting: None noted.

      GenotypingMethod: Genotyping was performed via whole exome sequencing.

      PreviouslyPublished No prior article is known to contain information on the same proband.

      Variant: The patient is heterozygous for the NM_005214.4 CTLA4):c.436G>A(p.Gly146Arg) variant.

      ClinVar: 849622

      gnomAD: This variant has an allele frequency of 0.000001696 in gnomAD v4.1.1. (https://gnomad.broadinstitute.org/variant/chr2-203870912-G-A?dataset=gnomad_r4)

      SupplementalData: There is no supplemental data.

    7. Patient 7 (P7)

      Case#: Patient 7 (P7) is a 50-year-old Chinese male.

      DiseaseAssertion: Patients are asserted to have "CTLA4 haploinsufficiency (CTLA-4 h).

      FamilyInfo:

      CasePresentingHPOs: HP:0012735 (Cough), HP:0002014 (Diarrhea), HP:0000988 (Skin rash), HP:0001596 (Alopecia), HP:0004313 (Decreased circulating immunoglobulin concentration), HP:0004386 (Gastrointestinal inflammation)

      CaseHPOFreeText: Patient's symptoms onset in his late 30s with respiratory and gastrointestinal symptoms. He developed pruritic rashes on the abdomen and bottom of the feet, as well as alopecia. Gastrointestinal histopathology finding included intestinal metaplasia in the gastric angle and pyloric mucosa, as well as lymphoid follicle formation in the descending duodenum.

      CaseNotHPOs: HP:0003493 (Antinuclear antibody positivity), HP:0034092 (Anti-cyclic citrullinated peptide antibody positivity),

      CaseNotHPOFreeText: Patient was negative for inflammatory bowel disease antibodies.

      CasePreviousTesting: None reported.

      GenotypingMethod: Genotyping was performed via whole exome sequencing.

      PreviouslyPublished No prior article is known to contain information on the same proband.

      Variant1: The patient is heterozygous for the NM_005214.4 CTLA4):c.151C>T(p.Arg51Ter) variant.

      ClinVar1: 161109

      gnomAD1: The variant was not found in gnomAD v4.1.1.

      Variant2: The patient is heterozygous for the NM_012452.3(TNFRSF13B):c.788C>T (p.Thr263Ile) variant.

      ClinVar2: 1696714

      gnomAD2: This variant has an allele frequency of 0.00009138 in gnomAD v4.1.1. (https://gnomad.broadinstitute.org/variant/chr17-16939641-G-A?dataset=gnomad_r4)

      Variant3: The patient is heterozygous for the NM_012452.3(TNFRSF13B):c.178C>T (p.Arg60Cys) variant.

      CAID3: CA8414096

      gnomAD3: This variant has an allele frequency of 0.00006666 in gnomAD v4.1.1. (https://gnomad.broadinstitute.org/variant/chr17-16952467-G-A?dataset=gnomad_r4)

      SupplementalData: There is no supplemental data.

    1. A 14-year-old adolescent girl first developed a relapsing-remitting inflammatory CNS disorder and thrombocytopenia in 1999

      Case#: The patient is a 39-year-old female with symptom onset at 14.

      DiseaseAssertion: The patient is asserted to have "CTLA-4 happloinsufficiency." "Affected patients develop cytopenia, lymphoproliferative disorders, and hypogammaglobulinemia and are prone to a variety of autoimmune phenomena."

      FamilyInfo: None provided

      CasePresentingHPOs: HP:0001873 (Thrombocytopenia), HP:0001888 (Lymphopenia), HP:0001903 (Anemia), HP:0004313 (Decreased circulating immunoglobulin concentration), HP:0002028 (Chronic diarrhea), HP:0002024 (Malabsorption), HP:0001596 (Alopecia), HP:4000055 (Intestinal inflammation), HP:0006824 (Cranial nerve paralysis), HP:0002090 (Pneumonia), HP:0001269 (Hemiparesis)

      CaseHPOFreeText: CSF analysis showed intrathecal synthesis of immunoglobulins G and M. MRI showed disseminated T2-hyperintense lesions, some lesions indicated long-lasting gadolinium enhancement (Figure 1A). PET scan-guided brain biopsy showed sustained myeline integrity, massive infiltration of T cells, and presence of few perivascular B cells. Infectious or neoplastic conditions were ruled out.

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: Laboratory testing was negative for infectious or rheumatologic conditions. Brain vessel angiography was normal.

      CasePreviousTesting: None reported.

      GenotypingMethod: Sequencing of the LRBA and CTLA4 genes was performed. Authors did not elaborate on methodology or assay.

      PreviouslyPublished No prior article is known to contain information on the same proband.

      Variant: The patient is heterozygous for the NM_005214.5(CTLA4):c.322_323insT (p.Ser108MetfsTer46) variant.

      CAID: CA3270658428

      gnomAD: This variant is not found in gnomAD v4.1.1.

      SupplementalData: Figure 1A shows MRI scans from 2014-2021. Figure 1B shows immunomodulatory treatment of the patient. Figure 1C shows blood lymphocyte count and lymphocyte subsets over time. Figure 1D shows Crohn disease activity index, blood platelet count, and serum immunoglobulins. Figure 2 shows single-cell RNA sequencing of peripheral blood monocular cells.

    1. We present a case

      Case#: 3-year-old male

      DiseaseAssertion: Activated phosphoinositide 3-kinase delta syndrome (APDS)

      CasePresentingHPOs: HP:0034839, HP:0005425, HP:0020071, HP:0012189

      CaseHPOFreeText: We describe a 3-year-old patient with a novel variant in the PIK3CD gene (c.58G > A p.(Val20lle)) presenting with EBV viremia, Hodgkin lymphoma, upregulation T follicular helper cells and CD10 + B cells consistent with a phenotype of APDS in a 3-year-old boy.

      Variant: c.58G > A p.(Val20lle)

      CAID: 1359338

    1. A 51-year-old woman

      Case#: A 51-year-old woman

      FamilyInfo: the patient (and her affected family members) were heterozygous for a novel, likely pathogenic frameshift deletion variant in CLTA-4 exon

      CasePresentingHPOs: HP:0002018, HP:0002141, HP:0003474, HP:0002110, HP:0001891, HP:0000964, HP:0001973, HP:0011108, HP:0100512

      CaseHPOFreeText: necrotising granulomatous lymphadenitis, osteonecrosis of the jaw induced by bisphosphonates, diverticulitis, and bowel salt malabsorption. The patient’s daughter had recurrent episodes of CNS inflammation as a child and in adulthood she developed autoimmune hepatitis, autoimmune haemolytic anaemia and bronchiectasis.

      FamilyInfo: The patient’s daughter had recurrent episodes of CNS inflammation as a child and in adulthood she developed autoimmune hepatitis, autoimmune haemolytic anaemia and bronchiectasis. The patient’s son was known to have type I diabetes, thyroid disease, pernicious anaemia and autoimmune encephalitis. FAS sequencing for autoimmune lymphoproliferative syndrome (ALPS) was normal and, at the time of presentation, extended panel screening for primary immunodeficiency was ongoing. There was prior exposure to corticosteroids but no other immunomodulatory treatment.

      Variant: c.81dup p.(leu28Serfs*32)

      ClinVar: 644629

      GenotypingMethod: a virtual sub-panel of 194 genes associated with primary immunodeficiencies screened using Agilent ‘Focused Exome’ custom target enrichment system (SureSelectXT) and Next Generation Sequencing demonstrated that the patient (and her affected family members) were heterozygous for a novel, likely pathogenic frameshift deletion variant

    1. Here, we report a patient who presented with recurrent infections and inflammation at the age of 2 years.

      Case#: Patient 16 (P16) is a female child, ethnicity not specified.

      DiseaseAssertion: The patient is asserted to have CTLA-4 haploinsufficiency with autoimmune infiltration (CHAI)

      FamilyInfo: Sanger sequencing of other family members revealed the same CTLA4 variant in seven females across four generations, all of whom are symptomatic with autoimmunity and/or recurrent infections. See Figure 1A for pedigree.

      CasePresentingHPOs: HP:0004880 (Respiratory infections in early life), HP:0003256 (Abnormality of te coagulation cascade), HP:0001954 (recurrent fever), HP:0000967 (Petechiae), HP:0002014 (Diarrea), HP:0003270 (Abdominal distention), HP:0025085 (Bloody diarrhea), HP:0001943 (Hypoglycemia), HP:0034315 (Chronic cough), HP:0000010 (Recurrent urinary tract infections), HP:0000076 (Vesicoureteral reflux)

      CaseHPOFreeText: In infancy the patient was hospitalized multiple times for respiratory viral infections and an episode of transient coagulopathy. She continued to experience respiratory infections, prolonged bleeding with transient coagulopathy, and intermittent bloody diarrhea. Patient had intermittent elevated lactate. Flow cytometry demonstrated normal lymphocyte subsets and immunoglobulin concentrations were within normal limits. Soluble IL-2 receptor levels were elevated. Gastrostomy tube was placed at 26 months due to recurrent hypoglycemia and poor growth.

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: Whole exome sequencing performed at 18 months old reported no diagnostic variants. Mitochondrial genome analysis was normal.

      GenotypingMethod: Genotyping was performed via whole exome sequencing, which initially did not identify any diagnostic variants. Research analysis of the clinical exome data identified the CTLA4 variant.

      PreviouslyPublished No prior article is known to contain information on the same proband.

      Variant: The patient is heterozygous for the NM_005214.5: c.654T>A (p.Tyr218*) variant.

      ClinVar: 2440604

      gnomAD: This variant has an allele frequency of 0.0006536 in gnomAD v4.1.1 (https://gnomad.broadinstitute.org/variant/chr3-38011318-G-A?dataset=gnomad_r4)

      SupplementalData: N/A

    1. A boy aged 3 years and 10 months was referred to the Department of Pediatric Hematology, Oncology and Transplantology due to thrombocytopenia (18 x 103/μl).

      Case#: The patient is male, 3 years and 10 months old. Ethnicity not specified

      DiseaseAssertion: The patient is asserted to have CTLA-4 insufficiency.

      FamilyInfo: Patient's mother has type 1 diabetes and autoimmune thyroiditis. The patient's maternal aunt has celiac disease and Lenox-Gastaut syndrome.

      CasePresentingHPOs: HP:0001873 (Thombocytopenia), HP:0011947 (Respiratory tract infection), HP:0000988 (skin rash), HP:0000967 (Petechiae), HP:0034752 (Axillary lymphadenopathy), HP:0001047 (Atopic dermatitis), HP:0001903 (Anemia), HP:0012234 (Agranulocytosis),

      CaseHPOFreeText: Patient had a mild upper respiratory tract infect followed by a small-spotted hemorrhagic rash and skin bruising. Physical examination was significant for punctate petechiae on skin and soft palate, as well as enlarged axillary lymph nodes bilaterally. On a subsequent visit patient was

      CaseNotHPOs:

      CaseNotHPOFreeText: Bone marrow biopsy did not reveal any abnormalities.

      CasePreviousTesting:

      GenotypingMethod:

      PreviouslyPublished No prior article is known to contain information on the same proband.

      Variant:

      ClinVar:

      gnomAD:

      SupplementalData:

  2. May 2026
  3. Aug 2025