Abstract
Cutaneous and intraoral metastasis from any malignancy is not common. Cutaneous spread
is usually noted in 5%–10% of high-grade malignancies, as in carcinoma breast, lung,
colon, ovary, and malignant melanoma. Only 4.6% cases of cutaneous spread are from
renal cell carcinoma (RCC). Intraoral spread from RCC is much rarer with an incidence
of approximately 1% of all malignant oral tumors, noted sometimes in tongue, palate,
buccal mucosa, gingiva, and lips. RCC is a highly aggressive tumor which requires
early diagnosis for increasing the chance of cure. In our case, a 54-year-old male
presented with swelling over upper lip, scalp, and retromolar area, which on histopathology
and immunohistochemistry revealed clear cell carcinoma compatible with metastatic
RCC.
Keywords
Cutaneous - hypernephroma - immunohistochemistry - intraoral - scalp
