Untreated Classic Galactosemia – a rare cause of adult-onset progressive cerebellar ataxia: A case report.

Introduction: Identifying the underlying etiology of nonfamilial adult-onset progressive cerebellar ataxia is often challenging because neurologists must consider almost all nongenetic and genetic causes of ataxia. Case Presentation: A 39-year-old woman was hospitalized for progressive ataxia with p...

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Main Authors: Ioannis Karafyllis, Jean-Marc Nuoffer, Joan-Philipp Michelis, Lara Chilver-Stainer
Format: Article
Language:English
Published: Karger Publishers 2024-02-01
Series:Case Reports in Neurology
Online Access:https://beta.karger.com/Article/FullText/536679
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author Ioannis Karafyllis
Jean-Marc Nuoffer
Joan-Philipp Michelis
Lara Chilver-Stainer
author_facet Ioannis Karafyllis
Jean-Marc Nuoffer
Joan-Philipp Michelis
Lara Chilver-Stainer
author_sort Ioannis Karafyllis
collection DOAJ
description Introduction: Identifying the underlying etiology of nonfamilial adult-onset progressive cerebellar ataxia is often challenging because neurologists must consider almost all nongenetic and genetic causes of ataxia. Case Presentation: A 39-year-old woman was hospitalized for progressive ataxia with pyramidal and cognitive dysfunction after a right arm shaking and coordination problem deteriorated progressively over 1.5 years. The patient's medical history included amenorrhea, cataracts, developmental delays, consanguinity of the parents, motor coordination issues, and diarrhea and vomiting in infancy. An important finding that enabled us to solve the diagnostic conundrum was the elevated CDT levels in the lack of alcohol-related symptoms, which also occur in untreated carbohydrate metabolism disorders, sometimes with ataxia as a leading symptom. The decreased erythrocyte galactose-1-phosphate uridyltransferase (GALT) enzyme activity and the elevated erythrocyte galactose-1-phosphate (Gal-1P) concentration led to the final diagnosis of galactosemia, a rare metabolic disorder. The patient's condition stayed stable with strict adherence to lactose-free and galactose-restricted diets, regular physiotherapy, and speech therapy, despite attempts to control the crippling tremor. Conclusion: This case highlights the importance of considering rare diseases based on unexplained clinical and laboratory findings. Newborn screening does not change the long-term complications of early-treated classical galactosemia. A small percentage of these patients develop ataxia tremor syndrome.
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spelling doaj.art-510ee4c08f2541cfb682d79ff643a9682024-02-29T07:06:19ZengKarger PublishersCase Reports in Neurology1662-680X2024-02-011110.1159/000536679536679Untreated Classic Galactosemia – a rare cause of adult-onset progressive cerebellar ataxia: A case report.Ioannis KarafyllisJean-Marc NuofferJoan-Philipp MichelisLara Chilver-StainerIntroduction: Identifying the underlying etiology of nonfamilial adult-onset progressive cerebellar ataxia is often challenging because neurologists must consider almost all nongenetic and genetic causes of ataxia. Case Presentation: A 39-year-old woman was hospitalized for progressive ataxia with pyramidal and cognitive dysfunction after a right arm shaking and coordination problem deteriorated progressively over 1.5 years. The patient's medical history included amenorrhea, cataracts, developmental delays, consanguinity of the parents, motor coordination issues, and diarrhea and vomiting in infancy. An important finding that enabled us to solve the diagnostic conundrum was the elevated CDT levels in the lack of alcohol-related symptoms, which also occur in untreated carbohydrate metabolism disorders, sometimes with ataxia as a leading symptom. The decreased erythrocyte galactose-1-phosphate uridyltransferase (GALT) enzyme activity and the elevated erythrocyte galactose-1-phosphate (Gal-1P) concentration led to the final diagnosis of galactosemia, a rare metabolic disorder. The patient's condition stayed stable with strict adherence to lactose-free and galactose-restricted diets, regular physiotherapy, and speech therapy, despite attempts to control the crippling tremor. Conclusion: This case highlights the importance of considering rare diseases based on unexplained clinical and laboratory findings. Newborn screening does not change the long-term complications of early-treated classical galactosemia. A small percentage of these patients develop ataxia tremor syndrome.https://beta.karger.com/Article/FullText/536679
spellingShingle Ioannis Karafyllis
Jean-Marc Nuoffer
Joan-Philipp Michelis
Lara Chilver-Stainer
Untreated Classic Galactosemia – a rare cause of adult-onset progressive cerebellar ataxia: A case report.
Case Reports in Neurology
title Untreated Classic Galactosemia – a rare cause of adult-onset progressive cerebellar ataxia: A case report.
title_full Untreated Classic Galactosemia – a rare cause of adult-onset progressive cerebellar ataxia: A case report.
title_fullStr Untreated Classic Galactosemia – a rare cause of adult-onset progressive cerebellar ataxia: A case report.
title_full_unstemmed Untreated Classic Galactosemia – a rare cause of adult-onset progressive cerebellar ataxia: A case report.
title_short Untreated Classic Galactosemia – a rare cause of adult-onset progressive cerebellar ataxia: A case report.
title_sort untreated classic galactosemia a rare cause of adult onset progressive cerebellar ataxia a case report
url https://beta.karger.com/Article/FullText/536679
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AT jeanmarcnuoffer untreatedclassicgalactosemiaararecauseofadultonsetprogressivecerebellarataxiaacasereport
AT joanphilippmichelis untreatedclassicgalactosemiaararecauseofadultonsetprogressivecerebellarataxiaacasereport
AT larachilverstainer untreatedclassicgalactosemiaararecauseofadultonsetprogressivecerebellarataxiaacasereport