Lung Metastases of a Giant Cell Tumor of the right Os metatarsale I

Abstract

This 22 year old man noted pain and a circumscribed swelling of the right os metatarsale I. A biopsy revealed a giant cell tumor , and a complete tumor resection of the 1 rst and 2 nd bone of the middle foot was undertaken. The diagnosis of a giant cell tumor was confirmed. A postsurgical thrombosis of the right vein was treated with heparin. Three years later multiple solid nodules of the lung were noted, and treated by 30 wedge resections. The metastases were classified as metastases of a giant cell tumor with partial osteoid differentiation resembling to an osteoid sarcoma grade 1 2. Until today no recurrent tumor masses could be noted.