Metástasis acral digital ósea por adenocarcinoma renal con afectación cutánea

Abstract

Abstract—Cutaneous metastases are a rare and late manifestation of the internal malignancies. The likelihood of a visceral malignant tumour producing deposits in the skin is increased if the lesion is anaplastic and of long duration. Acral metastasis are specially atypical. Most acral metastases affect bones with late secondary cutaneous involvement.We report the case of a 67-years-old female with metastatic renal cell carcinoma who presented swelling and blue-reddish discoloration in the distal part of the 2nd finger of her left hand that had appeared four days before. On the hand X-ray there was a lytic lesion on the third phalanx of this finger. The histopathological findings showed a clear cell proliferation replacing deep dermis. A diagnosis of osseous metastases with late secondary skin involvement from renal cell carcinoma was made.