Case#:Not assigned

DiseaseAssertion:MPS type I with evidence of cognitive impairment defined as a score of at least 1 SD below mean on IQ testing or in one domain of neuropsychological function; attenuated MPS I

FamilyInfo:No information

CasePresentingHPOs:HP:0100543

CaseHPOFreeText:

CaseNotHPOs:HP:0032557

CaseNotHPOFreeText:Subjects were excluded if they had undergone hematopoietic stem cell transplantation, were unable to comply with study procedures, had significant lumbar pathology precluding access to the intrathecal space via lumbar puncture, or significantly impaired spinal CSF flow as detected on a nuclear medicine flow study as part of screening.

CaseEnzymeAssay:No information

CaseUrineGAGs:No information

CaseERT:Yes

CaseBMT:No (exclusion criterion)

Variant1:L238Q

Variant1ClinVarID:265418

Variant1CAID:

Variant2:W402X

Variant2ClinVarID:

Variant2CAID:

AdditionalVariants:N/A

ParentalGenotype:Not specified

PreviouslyPublished

Case#:Not assigned

DiseaseAssertion:MPS type I with evidence of cognitive impairment defined as a score of at least 1 SD below mean on IQ testing or in one domain of neuropsychological function; attenuated MPS I

FamilyInfo:No information

CasePresentingHPOs:HP:0100543

CaseHPOFreeText:

CaseNotHPOs:HP:0032557

CaseNotHPOFreeText:Subjects were excluded if they had undergone hematopoietic stem cell transplantation, were unable to comply with study procedures, had significant lumbar pathology precluding access to the intrathecal space via lumbar puncture, or significantly impaired spinal CSF flow as detected on a nuclear medicine flow study as part of screening.

CaseEnzymeAssay:No information

CaseUrineGAGs:No information

CaseERT:Yes

CaseBMT:No (exclusion criterion)

Variant1:L238Q

Variant1ClinVarID:265418

Variant1CAID:

Variant2:63delC

Variant2ClinVarID:

Variant2CAID:

AdditionalVariants:N/A

ParentalGenotype:Not specified

PreviouslyPublished

Case#:Not assigned

DiseaseAssertion:MPS type I with evidence of cognitive impairment defined as a score of at least 1 SD below mean on IQ testing or in one domain of neuropsychological function; attenuated MPS I

FamilyInfo:No information

CasePresentingHPOs:HP:0100543

CaseHPOFreeText:

CaseNotHPOs:HP:0032557

CaseNotHPOFreeText:Subjects were excluded if they had undergone hematopoietic stem cell transplantation, were unable to comply with study procedures, had significant lumbar pathology precluding access to the intrathecal space via lumbar puncture, or significantly impaired spinal CSF flow as detected on a nuclear medicine flow study as part of screening.

CaseEnzymeAssay:No information

CaseUrineGAGs:No information

CaseERT:Yes

CaseBMT:No (exclusion criterion)

Variant1:65delC

Variant1ClinVarID:

Variant1CAID:

Variant2:H240R

Variant2ClinVarID:947028

Variant2CAID:

AdditionalVariants:N/A

ParentalGenotype:Not specified

PreviouslyPublished

PMID:34884460

GeneName:GRIN1

ClinVarID:209159

ClinVarID:397504

ClinVarID:1076783

ClinVarID:658023

ClinVarID:430264

ClinVarID:487503

ClinVarID:691274

Case:Patient 1, Male, 4 y/o, German and Thai

DiseaseAssertion:FOXG1 syndrome

FamilyInfo: Non-consanguineous parents. De novo. Patient 1 has maternally inherited duplications at 15q21.12(47292250-47309868)x3 and Xp22.31(6451676-8115124)x3 of unknown clinical significance.

ParentalGenotype:Not provided

CasePresentingHPOs:HP:0002197, HP:0005484, HP:0011344, HP:0001252, HP:0020045,HP:0000540, HP:0010808, HP:0002019, HP:0003781, HP:0012741, HP:0002421, HP:0000748, HP:0003763, HP:5200017, HP:0025112, HP:0000957

CaseHPOFreeText: At 19 months, could not sit independently and no speech development. Stereotypic hand and head movements. High pain tolerance. X-ray at age 2 showed broad ribs. Improved head control by age 4.

CaseNotHPO:HP:0410263, HP:0002376

CaseNotHPOFreeText:Dysmorphic features. breathing abnormalities

CasePreviousTesting:No previous testing

PreviouslyPublished:Not previously published

GenotypingMethod:Mate-pair sequencing, Sanger sequencing

Gene:FOXG1

Variant:46,XY,t(9;14)(q22.3;q11.2)dn

HGVS:Not provided

ClinVarID:426096

gnomAD:Not provided

Case:Patient 3, Male, 1 y/o, Brazilian

DiseaseAssertion: FOXG1 syndrome

FamilyInfo: Non-consanguineous parents

ParentalGenotype: No family testing mentioned.

CasePresentingHPOs: HP:0000252, HP:0001252, HP:0000486

CaseHPOFreeText: Developed microcephaly within 1 year. Developmental delay, unable to sit without assistance at 1 year old. Central Nervous System (CNS) MRI showed a volumetric reduction of the cerebral parenchyma, hypomyelination, and hypoplasia of corpus callosum mainly involving the anterior part and prominent lateral ventricles

CaseNotHPO: HP:0030917

CaseNotHPOFreeText: Normal length, weight, HC at birth. No retinal abnormalities.

CasePreviousTesting: Not asserted.

PreviouslyPublished: Not previously published.

GenotypingMethod: Sanger sequencing, mate-pair sequencing

Gene: FOXG1

Variant: 46,XY,t(2;14)(q37;q11.2)dn

HGVS: Not provided.

ClinVarID:426094

gnomAD:Not provided

Case:Patient 2, Female, 5 y/o, Brazilian

DiseaseAssertion:quadriplegic cerebral palsy with axial hypotonia and distal spasticity

FamilyInfo: Non-consanguineous parents. Parents had normal karyotypes. Older sister was clinically normal.

ParentalGenotype: Normal karyotypes for both parents.

CasePresentingHPOs: HP:0002098, HP:0010959, HP:0008755, HP:0002090, HP:0032661, HP:0001274, HP:0011344, HP:0001249, HP:0001344, HP:0000748, HP:0034435, HP:0000486, HP:0000483, HP:0200136

CaseHPOFreeText: Dilated superficial blood vessels seen on brain MRI.

CaseNotHPO:N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: Not asserted

PreviouslyPublished: Not previously published

GenotypingMethod:Mate-pair sequencing, Sanger sequencing, chromosome analysis

Gene: FOXG1

Variant: 46,XX,t(4;14)(q27;q13)dn

HGVS: Not provided

ClinVarID: 426095

gnomAD: Not provided