ArticleJournal of medical case reports2022
Peripheral neuropathy as a very rare symptom in a patient with Niemann-Pick type C with negative enzymatic evaluation: a case report.
Article in Journal of medical case reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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3 authors at 2 institutions in 1 country.
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Abstract
backgroundNiemann-Pick is a rare metabolic disease distinguished by lysosomal storage defects. This disease is characterized by sphingomyelinase acid deficiency, causing its accumulation in various organs such as the kidneys, spleen, liver, brain, and nerves. Niemann-Pick disease is categorized into four groups: A, B, C, and D. Peripheral neuropathy is an extremely rare complication in patients with Niemann-Pick type C, which certainly leads to neurologic deterioration. CASE PRESENTATION: We report a case of Niemann-Pick type C disease in a 3-year-old Iranian Azeri female patient who was hospitalized twice. The first time was at 1 month of age with symptoms of splenomegaly, jaundice, and elevated liver enzymes, and the second time was at around age 2 for loss of mental and physical abilities. The patient presented with failure to thrive. According to paraclinical examinations, mildly delayed myelination along with a nonspecific periventricular hypersignal intensity was seen. Interestingly, the patient's Niemann-Pick type C enzymatic function was evaluated twice and was negative on both occasions, while she was positive for NPC1 and NPC2 gene examinations.
conclusionsIn this study, despite the enzymatic study being negative, Niemann-Pick type C disease was finally confirmed, revealing the importance of mutations in Niemann-Pick type C pathogenesis. Besides, peripheral neuropathy was diagnosed in this patient as a very rare symptom of Niemann-Pick type C.
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