A rare endoscopic finding: primary esophageal melanoma.

We report a case of a patient accidentally diagnosed with an esophageal lesion compatible (histologically and immunohistochemically) with epithelioid melanoma. The skin examination did not reveal any evidence of melanoma and the patient was diagnosed with primary malignant melanoma of the esophagus. It's a very rare tumour. The majority of melanocytic lesions of the gastrointestinal tract are presumably secondary to a cutaneous melanoma and in order to discard this, a thorough skin examination is needed. Diagnosis is based on endoscopic image, histological data and especially on immunohistochemical evaluation. Primary malignant melanoma has a very poor prognosis as it usually presents distant metastasis when diagnosed. Surgery (with or without associated immunotherapy) remains the base of treatment in absence of advanced disease.