Large solitary scalp metastasis of renal cell carcinoma: A case report.

Renal cell carcinoma (RCC) can metastasize to various organs of the body. The skin is an uncommon site for metastasis. However, if metastasis to skin occurs, scalp is a common area. We present a 77-year-old male patient, with a 12-year history of RCC. In the current presentation, he was hospitalized due to hematuria, fatigue, electrolyte imbalance, and deteriorating kidney functions. After the patient was stabilized, he was referred to the plastic surgery clinic due to an unusual, extremely large, hemorrhagic, ulcerative, and vegetative mass on his scalp. Total excision of the scalp mass was performed and, it was noted that the calvarium was intact and the defect was grafted. Histology report of the specimen confirmed to metastatic RCC. Clinicians need to keep in mind that large cutaneous lesion can be a metastasis from an internal malignancy.