Hypervascular skin metastases of clear cell renal cell carcinoma

Abstract

Skin metastases are rare localization of secondary foci. More rarely, metastases are found in the skin of the head and neck. The article describes a clinical case of identifying two primary lesions in the buccal and submandibular region in a 61-year-old patient with no history of cancer. The examination data showed a hypervascular structure of the lesions, which suggested a diagnosis of vascular malformation. However, histological examination revealed metastases of clear cell renal cell carcinoma to the skin. Further examination revealed a tumor in the left kidney and secondary lesions in both lungs. The described clinical case encourages dermatologists and maxillofacial surgeons to be wary of patients with isolated skin lesions in order not to miss atypical metastases of a renal tumor.