Tc-99m MIBI scintigraphy in a patient with primary and metastatic malignant melanoma

Malignant melanoma is a rare malignant tumor arising within the melanocytes of the skin. The authors report a case of primary and metastatic malignant melanoma revealed with Tc-99m MIBI in one patient. Tc-99m MIBI images showed uptake in possible malignant melanoma skin lesions of the left calf and great toe of a 73-year-old man. Malignant melanomas (primary and metastatic) were diagnosed on excisional biopsies. Tc-99m MIBI scintigraphy might be useful not only in the diagnosis of possible primary malignant melanoma lesions but also in the diagnosis of metastatic or recurrent disease.