Homozygous germline mutation in MUTYH gene in familial adenomatous polyposis [Mutación homocigota en la línea germinal del gen MUTYH en una paciente chilena con poliposis adenomatosa familiar]

Alvarez, K; De La Fuente M.; Orellana P.; Wielandt A.M.; Heine C.; Suazo, C; Kronberg U.; Carvallo, P.; Lopez-Kostner, F

Abstract

Recently, MUTYH mutations have been reported to predispose to the development of polyposis. However, polyposis caused by mutations in MUTYH has been characterized as an autosomal recessive hereditary disease, different from the autosomal dominant pattern observed in polyposis caused by APC mutations. We report a 41-year-old female consulting for anemia. Colonoscopy detected multiple sessile polyps and a cecal carcinoma. The patient was operated and in the surgical piece, the tumor invaded serosa and there was lymph node involvement. Approximately 100 polyps were found. The patient received 5 -fluorouracil, as adjuvant therapy. The patient had a sister (of a total of 12 brothers) with a colorectal carcinoma. The genetic study identified a homozygous mutation of the MUTYH gene, called c.340T > C, that produces an amino acid change of tyrosine for histidine called p.Y114H. The sister with colorectal cancer was a heterozygous carrier of this mutation.

Más información

Título según SCOPUS: Homozygous germline mutation in MUTYH gene in familial adenomatous polyposis [Mutación homocigota en la línea germinal del gen MUTYH en una paciente chilena con poliposis adenomatosa familiar]
Título de la Revista: REVISTA MEDICA DE CHILE
Volumen: 140
Número: 11
Editorial: SOC MEDICA SANTIAGO
Fecha de publicación: 2012
Página de inicio: 1457
Página final: 1463
Idioma: English; Spanish
DOI:

10.4067/S0034-98872012001100013

Notas: SCOPUS