Preferred Label : Alpha-N-acetylgalactosaminidase deficiency;
ICD-11 definition : Alpha-N-acetylgalactosaminidase (NAGA) deficiency is a lysosomal storage disease classified
among the oligosaccharidoses or glycoproteinoses. The disorder is clinically heterogeneous.
An infantile form (Schindler disease) presents with progressive hypotonia, extra-pyramidal
signs and rapid psychomotor regression (myoclonic epileptic seizures, spastic quadriplegia,
blindness, loss of contact with the outer world). The adult form (Kanzaki disease)
presents with angiokeratomas similar to those found in Fabry disease and moderate
intellectual deficit. Intermediate forms have also been observed with behavioural
disturbances, epileptic seizures and variable psychomotor retardation.;
ICD-11 synonym : NAGA deficiency; N-acetyl-alpha-D-galactosaminidase deficiency; NAGA - [Alpha-N-acetylgalactosaminidase] deficiency;
Origin ID : 1647881428;
UMLS CUI : C1836544;
Automatic exact mappings (from CISMeF team)
Currated CISMeF NLP mapping
Semantic type(s)
UMLS correspondences (same concept)
Validated automatic mappings to BTNT
Alpha-N-acetylgalactosaminidase (NAGA) deficiency is a lysosomal storage disease classified
among the oligosaccharidoses or glycoproteinoses. The disorder is clinically heterogeneous.
An infantile form (Schindler disease) presents with progressive hypotonia, extra-pyramidal
signs and rapid psychomotor regression (myoclonic epileptic seizures, spastic quadriplegia,
blindness, loss of contact with the outer world). The adult form (Kanzaki disease)
presents with angiokeratomas similar to those found in Fabry disease and moderate
intellectual deficit. Intermediate forms have also been observed with behavioural
disturbances, epileptic seizures and variable psychomotor retardation.