Abstract

Giant cell fibroblastoma (GCF) is an uncommon, mesenchymal neoplasm of the soft tissues. It is an unusual childhood tumour of intermediate malignancy. We are reporting a case of giant cell fibroblastoma in a 3 and a half-year-old boy who presented with painless oval swelling at the left shoulder that appeared from birth. MRI of the shoulder revealed a subcutaneous mass. The patient underwent a total excision of the mass. Histological, immunohistochemical and genetic examinations have shown giant cell fibroblastoma. This tumour poses diagnostic challenges to the pathologist because it may be confused with malignant mesenchymal tumours with different prognosis.