Neoplasia in the toes and toenail areas.

Benign and malignant tumors as well as pseudotumors occur in the toes. The toenail areas may also be involved primarily or secondarily. All tissues in the toes can give rise to tumors. Occasionally, metastatic tumors from the viscera manifest in the toes. New or recurrent masses should be subjected to biopsy, as should lesions that do not respond to treatment based on an initial clinical impression.