Niemann–Pick type C disease (NP-C) presents with heterogeneous neurological and psychiatric symptoms. Adult onset is rare and possibly.
Abstract. Niemann-Pick disease type C (NPC) is an autosomal recessive neurometabolic disorder that rarely presents in adulthood, and is associated with .
Keywords: Niemann-Pick disease type C (NPC), adult-onset, lipid storage disorder, genetic mutation, neuropsychiatric disorder, miglustat, vertical gaze palsy.