Malignant melanoma is a very aggressive type of cancer and some of patients have distant metastasis at presentation. Gastrointestinal system metastases are common and generally asymptomatic. The disease is rarely diagnosed only by gastrointestinal symptoms. Our case was diagnosed with malignant melanoma after upper gastrointestinal bleeding, characteristic lesions for malignant melanoma were seen by gastrocopy. The diagnosis was confirmed by biopsy.
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