Ewing Sarcoma

General Information Ewing sarcoma is a small round blue cell sarcoma It is a primary osseous neoplasm (cancer/sarcoma) composed of uniform, monotonous, small round blue cells without any matrix production Fourth most common primary malignancy of bone Approximately 5%...

Lymphoma of Bone

General Information Primary lymphoma of bone is defined as lymphoma arising within the medullary cavity of a bone in the absence of lymph node or organ involvement for at least 6 months after diagnosis Primary lymphoma of bone is rare (3% of primary bone tumors) and...

Osteoblastoma

General Information Benign osteoblastic neoplasm with aggressive growth pattern (considered a benign aggressive tumor) Histologically it is similar to osteoid osteoma but is a larger size and grows progressively Consists of well vascularized connective tissue stroma...

Nonossifying Fibroma

GENERAL INFORMATION Nonossifying fibroma is a benign intracortical, multilocular and well circumscribed lesion that affects young patients. It originates from the proliferation of fibrous tissue and histocytes.  The most common location are the distal femoral and...