Renal Metastatic Melanoma Presenting With Solitary Mass.

The kidney is a rare site of metastatic implantation. Metastases to the kidney most commonly originate from carcinomas in the lungs, breasts, and colon. Melanoma metastasis to the kidney is rare.

Pleural mesothelioma metastasis of the scalp.

Mesothelioma is a locally aggressive malignant tumor that arises on the mesothelial surfaces of the pleura, peritoneum and tunica vaginalis. There are three histologic subtypes of mesothelioma: epithelioid, biphasic, and sarcomatoid. Pleural mesothelioma is usually characterized by diffuse pleural thickening.