Melanocitoma meníngeo con manifestación clínica poco frecuente. Reporte de un caso y revisión bibliográfica.

BACKGROUND: Meningeal melanocytoma is a low frequency neoplasm compound by benign melanocytic cells, however, this lesion is associated with an aggressive behavior, 22% of recurrence in 5 years. CLINICAL CASE: A 73-year-old male that initial symptom was headache; this last evolves to severity and eventually develops blindness. The tumor was in posterior fossa and presented plenty of bleeding during surgical event. At microscope, neoplasm is well limited, lacks capsule, forming cells nests with middle to big size, some of them are epithelioid and other fusiform, with melanin in their cytoplasm, nucleus is big and prominent nucleolus. The diagnosis of meningeal melanocytoma was established. The patient had complications, suffered from pneumonia, and died one month after admission to the hospital. The diagnosis of meningeal melanocytoma was established. The patient had complications, suffered from pneumonia and died a month after admission to the hospital. CONCLUSION: Meningeal melanocytoma is an exceptional neoplasm, with prognostic factors of low reproducibility and a high rate of complications, so the report of this case is important to contribute to a better understanding of the disease. [ABSTRACT FROM AUTHOR]