The term metastasis refers to the spread of the cancer cells from their original or primary site to a different location in the body. It must be stressed that local invasive growth is not considered metastases but local spread or expansion of the tumor. Thus metastasis is the process by which cancer cells migrate throughout […]
Tumors
Osteochondroma and Multiple Hereditary Exostoses
Osteochondroma is a cartilage-capped bony projection on the external surface of a bone and is considered a non-neoplastic anomaly similar to hamartoma. It can occur as a solitary lesion or as multiple hereditary exostoses associated with anomalies of skeletal modeling. Solitary osteochondroma is a developmental anomaly of bone that results in the formation of an […]
Osteoid Osteoma Diagnosis and Treatment
Osteoid osteoma is a benign [non-cancerous] osteoblastic tumor. It was first described by Bergstrand 1930 but its unique identity was recognized by Jaffe in 1935. Osteoid osteoma consists of osteoblastic [growing cells] mass called a nidus [very rich in blood supply]. Nidus is surrounded by a zone of sclerotic but otherwise normal bone. It is a […]