Giant Cell Tumour of Proximal Ulna– Atypical Location in a 32 Yr Old Male – A Rare Case.

Abstract

Abstract: Giant cell tumour (GCT) of bone, or osteoclastoma, was classically described as a locally invasive tumour that occurs close to the joint of a mature bone1. GCT was rare, generally benign and locally aggressive tumour. It represents approximately 3% to 5% of all primary bone cancers. It usually occurs in adults between the ages of 20 and 40 years. However GCT of bone was uncommon in children younger than 15 years and in adults older than 65 years of age2. The ulnar metaphysis is an unusual site (0.45% to 3.2%) for a primary bone GCT2. Typically the tumour appears to be an expanded radiolucent lesion located in the epiphyseal end of the tubular bone. In our experience, a substantial proportion of patients seek traditional means of treatment before medical consultation and they present late with extensive involvement of soft tissue and articular surface, making joint preservation difficult or impossible. For reconstruction, several options have been described, which include fibular autografts, allografts and cement augmentation. Inherent to all these procedures is the risk of delayed union of the graft and preserving functional mobility of the joint. We report a rare case of a proximal ulna GCT diagnosed in a 32 years old Male. It was treated with intralesional curettage, and with bone cement reconstruction.