Answer:
Metastasis to the hand is uncommon. Fewer than 0.3 percent of patients with cancer develop acrometastases. Bronchogenic carcinoma of the lung has been reported as the primary malignancy in as many as 50 percent of cases and is the most common metastatic lesion occurring in men. The distal phalanx has been noted to be the most common site of metastases. A predilection for involvement of the dominant hand has been noted. Radiographs usually reveal a lytic destructive lesion, although metastatic prostate carcinoma can produce a sclerotic lesion. Treatment should be directed at relief of pain and preservation of function. Amputation and ray resection are effective in providing palliation and local control of disease. External beam radiation may be used in patients with multiple or inoperable lesions, although pain relief is less predictable.