Description of the disease * EnglishPolish Pobierz sekcję do PDF Definition A clinically heterogeneous group of mitochondrial disorders characterized by a reduction of the mitochondrial DNA copy number in affected tissues without mutations or rearrangements in the mitochondrial DNA. It is phenotypically heterogeneous, and can affect a specific organ or a combination of organs, with the main presentations described being either hepatocerebral (i.e. hepatic dysfunction, psychomotor delay), myopathic (i.e. hypotonia, muscle weakness, bulbar weakness), encephalomyopathic (i.e. hypotonia, muscle weakness, psychomotor delay) or neurogastrointestinal (i.e gastrointestinal dysmotility, peripheral neuropathy). Additional phenotypes include fatal infantile lactic acidosis with methylmalonic aciduria, spastic ataxia (early-onset spastic ataxia-neuropathy syndrome), and Alpers syndrome. Disease data Classification Category Synonyms mtDNA depletion syndrome Zespół deplecji mtDNA ORPHA code 35698 OMIM code - ICD10 code - ICD11 code 5C53.20 *Soruce Extended description of the disease Pobierz sekcję do PDF No additional description. Orphanet - interntowa baza danych dotyczących rzadkich chorób i sierochych leków. ©INSERM 1999 - Dostępna na stronie www.orphanet.pl