Giant cell tumor of the tendon sheath of the toe imitating macrodactyly: case report.

The authors present a case of giant cell tumor of the tendon sheath (GCTTS) imitating macrodactyly macroscopically. They give an overview of the differential diagnosis of macrodactyly, the behavior of GCTTS, its most frequent localizations, the scope of surgical procedures available in cases of the disproportionate enlargement of a digit, and also of earlier GCTTS cases recorded in the files of the Orthopedic Clinic of the Semmelweis University.