Open AccessAdults with lysosomal storage diseases in the undiagnosed diseases network
Author(s) -
Xiao Changrui,
Koziura Mary,
Cope Heidi,
Spillman Rebecca,
Tan Khoon,
Hisama Fuki M.,
Tifft Cynthia J.,
Toro Camilo
Publication year - 2022
Publication title -
molecular genetics and genomic medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.765
H-Index - 29
ISSN - 2324-9269
DOI - 10.1002/mgg3.2013
Subject(s) - medicine , pediatrics , referral , neurocognitive , lysosomal storage disease , medical diagnosis , differential diagnosis , neurology , disease , neuronal ceroid lipofuscinosis , tay sachs disease , intensive care medicine , pathology , psychiatry , family medicine , cognition
Objectives To review the referral and clinical characteristics of adult patients diagnosed with lysosomal storage diseases (LSD) through the Undiagnosed Diseases Network (UDN). Methods Retrospective review of both application and evaluation records for adults admitted to the UDN with a final diagnosis of a lysosomal storage disease. Results Ten patients were identified. Final diagnoses included late onset Tay Sachs, attenuated MPS I, MPS IIIA, MPS IIIB, and MPS IIIC. Most patients presented with neurocognitive changes. Prior to referral, all patients had been evaluated by neurology, four patients underwent phenotype specific panel testing that did not include the causative gene, and four patients had non‐diagnostic clinical exome sequencing. Conclusions LSDs figure highly in the differential diagnosis of neurometabolic disorders in pediatric onset progressive diseases. In adults, their subtle initial presentations overlap with symptoms of more common disorders and less practitioner awareness may lead to prolonged diagnostic challenges.