Metastatic malignant melanoma affecting stomach

Abstract

Malignant melanoma has been reported to affect all organs of the human body with the metastasis. Stomach metastases are quite rare in cases of the most commonly reported primaries including, melanoma and breast, and lung carcinomas. This report involves, a 56-year-old man suffering from melanoma of the lower extremity that developed into gastric, pulmonary, and brain metastases. The patient who experienced epigastric pain with suspicious melanoma was referred to undergo endoscopy. A black and white ulcer with dimensions of 1 x 1.5 cm and a mass of 1 x 2 cm mass were found at D1 and lesser curvature. Physical examination revealed a 2 x 3 cm black lesion at his right heel. Pathologic examination provided multiple pieces of creamy soft-tissue measuring 0.3 x 0.2 x 0.1 cm showing pigmented tumor cells in lamina propria. Staining biopsy samples with anti-HMB-45 and Fontana demonstrated a higher degree of positivity in tumor cells. The patient was admitted to the hospital, but unfortunately his general conditions were deteriorated and he developed convulsion and deceased four days after admission.