[Bladder urothelial carcinoma with acrometastasis: a case report and review of the literature].

The authors report a new case of acrometastasis of the hand, from a urothelial carcinoma of the bladder, in a 46-year-old woman, with a history of left lower lobectomy for bronchial carcinoma. Physical examination revealed a tumor of the dorsal hand, inflammatory and painful. The radiograph showed ill-defined osteolysis of the base of the fourth metacarpal. Two immunohistochemical studies were needed to confirm the origin of the bladder metastasis. The authors propose a review of the literature addressing the difficulty of diagnosis, treatment and poor prognosis of these lesions.