Mucinous pseudocysts of the toes: an effective surgical method of treatment.

Mucinous pseudocysts are dome-shaped, fluctuant lesions that may affect the dorsal aspects of the toes. Although synovial involvement cannot usually be demonstrated by histologic examination of biopsy specimens, joint involvement is a causative factor. Arthroplasty of the intermediate phalangeal head is advocated along with excision of the pseudocyst and its underlying pedicle. Conservative approaches rarely provide a permanent cure for mucinous pseudocysts of the toes.