[An unusual case of metastasis to the soft tissues of the palm of the hand with compression of the median and ulnar nerve by kidney cancer. Case report].

The incidence of secondary tumors in the hand is set slightly over 0.1%, the primary tumor localized in the lung, followed by the breast and the kidney. The authors describe a case of a renal carcinoma metastatic to the soft tissue of the palm of the hand in a patient who had undergone nephrectomy for carcinoma of the right kidney eleven years previously. The sixty-one year old female patient developed a swelling of the palm of the left hand and showed symptoms of median and ulnar nerve compression. The patient had neurosurgery because of a solitary metastatic brain tumor of the right hemisphere three months earlier and did not approve to an additional surgical intervention in the hand at that time. The decision was made to treat the tumor with a local radiation therapy. Five months later, the treatment showed no effect and the patient decided to have the operation done. Histologic examination established the diagnosis of a metastatic renal cell carcinoma. The healing was prolonged. An ulceration developed in the distal part of the wound area and healing took seven weeks. Seven months after the operation the patient was alive and well without evidence of disease. The hand showed a good function with little impairment and the symptoms of nerve compression had completely disappeared.