Open Access
CC BY-NC-ND 4.0 · Journal of Coloproctology 2023; 43(03): e221-e223
DOI: 10.1055/s-0043-1774735
Case Report

Clinical and Imaging Research in the Diagnosis of Anorectal Melanoma with Surgical Outcome: A Case Report and Literature Review

Authors

  • Ana Luiza Moraes Rocha

    1   Department of Medicine, Pontifical Catholic University of Paraná, Curitiba, PR Brazil
  • Gabriella Giandotti Gomar

    2   Department of Medicine, Faculdade Pequeno Príncipe, Curitiba, PR, Brazil
  • João Pedro Cruz Lima Chagas

    3   Department of Medicine, Positiv University, Curitiba, PR, Brazil
  • Dayara Mussi Salomão

    1   Department of Medicine, Pontifical Catholic University of Paraná, Curitiba, PR Brazil
  • Luciana Clivatti

    4   Department of Coloproctology, Santa Casa de Curitiba, Curitiba, PR, Brazil
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Abstract

Objective This study aims to report the case of a 69-year-old female patient with a diagnosis of anorectal melanoma (AM) established by immunohistochemistry.

Methods Clinical case report, a descriptive and qualitative study.

Results The patient had a nodular and ulcerative lesion in the anal region, the imaging exams revealed an expansive lesion that affected the rectum and the vaginal wall. The chosen course of treatment was initial surgical intervention, the surgery and postoperative course progressed without complications, and the anatomopathological examination confirmed the diagnosis of invasive malignant melanoma of the distal rectum of anorectal transition. The anatomopathological examination confirmed the diagnosis of invasive malignant melanoma located in the distal rectum of the anorectal transition. Immunohistochemistry analysis showed infiltrative melanoma with microsatellites, as well as peri and intratumoral lymphocytic infiltrate, angiolymphatic invasion, and perineural invasion. The surgical resection margins, ovaries, posterior vaginal wall, and parametrium showed no signs of neoplastic involvement. Following the surgery, the patient began immunotherapy, which she is still undergoing.

Conclusions The survival rate of AM can be improved through various diagnostic and therapeutic modalities. However, further exploration of this topic through clinical studies is necessary to enhance both diagnosis and treatment.

Santa Casa de Curitiba, Paraná, Brasil




Publikationsverlauf

Eingereicht: 04. November 2022

Angenommen: 21. Juni 2023

Artikel online veröffentlicht:
21. September 2023

© 2023. Sociedade Brasileira de Coloproctologia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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