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Rev. medica electron ; 41(3): 756-764, mayo.-jun. 2019. graf
Article in Spanish | LILACS, CUMED | ID: biblio-1094083

ABSTRACT

RESUMEN Los melanomas mucosos son tumores poco frecuentes y de mal pronóstico. Presentan un comportamiento agresivo, y pueden tener varias localizaciones en el aparato digestivo. Este tipo de tumores es más frecuente en la región anorectal. Se presentó un caso de una paciente femenina de 59 años, con un cuadro de varios meses de evolución; caracterizado por ardor, prurito anal y sensación de masa que prolapsaba a través del ano. Se constató al examen físico masa tumoral aspecto polipoideo. Se realizó polipectomía donde la biopsia arrojó como resultados el aspecto histológico de un melanoma mucoso de canal anal.


ABSTRACT Mucous melanomas are few frequent and have a bad prognosis. They present an aggressive behavior and might have several locations in the digestive system. This kind of tumors is more frequent at the anus-rectal region. The authors presented the case of a female patient, aged 59 years, with clinical conditions of several months of evolution, characterized by burning, anal pruritus and the sensation of a mass prolapsing through the anus. A tumor mass of polypoid aspect was found at physical examination. Polypectomy was carried out and the biopsy showed the histologic aspect of a mucous melanoma of the anal canal.


Subject(s)
Humans , Female , Adult , Anus Neoplasms/diagnosis , Anus Neoplasms/pathology , Anus Neoplasms/blood , Cell Transformation, Neoplastic , Sarcoma, Clear Cell/diagnosis , Melanocytes/metabolism , Melanoma/diagnosis , Melanoma/pathology , Melanoma/blood , Anal Canal/physiopathology , Pruritus Ani/diagnosis , Neoplasm Metastasis
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