Duodenal Metastasis From a Rectal Malignant Melanoma Primary: A Case Report

Ghazaleh Shaker; Forough Alborzi; Masoomeh Safaei; Samira Moiini

doi:10.18502/crcp.v6i1.5957

Ghazaleh Shaker Department of Pathology, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran.
Forough Alborzi Department of Gastroenterology and Hepatology, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran.
Masoomeh Safaei Department of Pathology, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran.
Samira Moiini Department of Pathology, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran.

DOI: https://doi.org/10.18502/crcp.v6i1.5957

Keywords: Rectal melanoma; Duodenal metastasis; Malignant melanoma

Abstract

Duodenal melanoma constitutes a very small number of gastrointestinal malignant melanomas. The small intestine is a common site for the metastatic spread of cutaneous melanomas; however, its metastatic involvement from a primary rectal melanoma origin has seldom been reported. We present the histopathologic features of an unusual case of primary rectal melanoma metastasizing to the duodenum.