BACKGROUND: Although the phenomenon of tumor-to tumor metastasis is not rare, it has been reported in only eight cases with malignant melanoma as the primary tumor. METHODS: This case describes a patient with cutaneous malignant melanoma that metastasized to an angiolipoma. To our knowledge this is the second case of a malignant melanoma metastasizing to another primary cutaneous tumor and the first to do so in a lipoma. CONCLUSION: In this report we present the clinical and histopathologic features of this special case and review the relevant literature.
BACKGROUND: Although the phenomenon of tumor-to tumor metastasis is not rare, it has been reported in only eight cases with malignant melanoma as the primary tumor. METHODS: This case describes a patient with cutaneous malignant melanoma that metastasized to an angiolipoma. To our knowledge this is the second case of a malignant melanoma metastasizing to another primary cutaneous tumor and the first to do so in a lipoma. CONCLUSION: In this report we present the clinical and histopathologic features of this special case and review the relevant literature.