Malignant melanoma of the stomach in an elderly patient.

To the Editor, Malignant melanoma (MM) is a highly aggressive disease that originates from typical sites where the melanocytes can be usually found (skin, eyes, meninges, and anal region) (1,2). MM can attack any part of the gastrointestinal (GI) tract, and this event is mainly caused by metastatic spread from primary cutaneous lesions. However, there is a portion of GI melanomas without any documented evidence of a primary lesion in the skin or elsewhere, even after thorough examination. In such cases, involved organ of the digestive system is considered the primary site of MM (2,3).