Multiple ulcerated submucosal masses in the gastrointestinal tract: a rare presentation of metastatic cutaneous malignant melanoma

Malignant melanoma is the most common metastatic tumor of the gastrointestinal (GI) tract [1]; it is rarely a primary tumor in the GI tract. Malignant melanoma is more frequently identified in the anus and rectum (31% and 22%, respectively), but it can also be found in the esophagus (6%), stomach (3%), small intestine (2%), and large intestine (1%), as well as in the oronasopharynx (35%) [2].