Histologically, osteochondromas are hamartomas developed from endochondral ossification which are coated with a thin cartilage layer [1]. Epidemiologically, these are the most frequent benign tumor, after nonossifying fibromas and metaphyseal lacunae, representing, in the Unni series [2], about 40 % of all benign tumors, and they are located preferentially at the metaphyseal level of long bones...

Introduction: Bizarre Parosteal Osteochondromatous Proliferation (BPOP), or Nora’s Lesion, is a very rare condition, with less than 200 documented cases that exist in the literature. BPOP / Lesion of talus has not been reported any literature Indonesia. Therefore, this study aim to present unique and case (Nora’s Lesion) talus.Case: An eighteen-year-old male patient admitted hospital complaint ...

Nora's tumour is an uncommon benign tumour, involving mostly tubular bones of hands and feet, and characterized by a proliferation of chondroid, bony and fibrous tissues. Main differential diagnoses are osteochondroma, chondrosarcoma, and osteosarcoma. The authors report a case involving the left foot. The diagnosis was suspected by imaging characteristic features and was confirmed by histologi...

Many tumors are unique to the organs from which they arise. Over the last 20 years, however, most tumors that were thought to be primary in soft tissues (derived from the primitive mesenchyme) and thought not to have counterparts in bone, were found to, in fact, rarely arise as unique lesions from bone. Some examples include synovial sarcoma, rhabdomyosarcoma and leiomyosarcoma, to name but thr...