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Niemann-Pick disease type-B: a unique case report with compound heterozygosity and complicated lipid management
L Ordieres-Ortega1,2, F Galeano-Valle1,3, M Mallén-Pérez4
1Internal Medicine Department, Hospital General Universitario Gregorio Marañón, Calle Dr. Esquerdo 46, 28007, Madrid, Spain.
Background:
Niemann-Pick disease (NPD) is a rare autosomal recessive hereditary disease characterized by deficient activity of acid sphingomyelinase.
Case Presentation:
We present a case of NPD type B with a unique compound heterozygosity for SMPD1 (NM_000543.4:c.[84delC];[96G > A]) in which both mutations that induce an early stop codon are located before the second in-frame initiation codon. The clinical presentation of the patient is compatible with NPD type B. She was initially diagnosed of Gaucher Disease, but her altered lipid profile led to a clinical suspicion of NPD. Combined high doses of atorvastatin and ezetimibe were given to treat the severe hypercholesterolemia.
Conclusions:
The pharmacological management of the lipid profile in these patients is important. A unique compound mutation in SMPD1 gene is described.
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