A rare autosomal recessive disorder resulting from the absence of CATALASE activity. Though usually asymptomatic, a syndrome of oral ulcerations and gangrene may be present.

Synonyms: Deficiencies, Catalase, Hypocatalasia, Disease, Takahara, Acatalasemia Swiss Type, Disease, Takahara's, Takahara Disease, Hypocatalasemia, Acatalasemia, Acatalasia, Acatalasemia Japanese Type, Takaharas Disease, Takahara's Disease, Japanese Type, Acatalasemia, Catalase Deficiency, Deficiency, Catalase, Catalase Deficiencies, Swiss Type, Acatalasemia