1993 Volume 43 Pages 163-165
The patient is 63-year-old man, who had had resection of the right thumb for malignant melanoma in 1989. Lung and brain metastasis had been detected with X-ray film and MRI in 1992.
On December 1992, he complained of massive tarry stool and severe anemia. Gastrointestinal endoscopy revealed multiple elevated lesions showing so-called bull's eye sign. Biopsy under endoscopy revealed metastasis of malignant melanoma in the submucosal layer of the stomach. It was thought that the massive bleeding did occur from the surface of the submucosal tumor.
Metastatic gastric tumor is thought to grow in the submucosal layer and have little bleeding from its surface. In that mean, it can be said that this is a rare case of metastatic gastric tumors in malignant melanoma.
