Items tagged “sarcoma”

7 results found
Article

Synovial sarcoma

Synovial sarcomas are relatively common intermediate-to-high grade malignant soft tissue tumors, often with an initial indolent course, affecting young patients and most commonly involving the soft tissue surrounding the knees. Epidemiology Synovial sarcomas typically present in adolescents an...
Article

Ewing sarcoma

Ewing sarcomas are the second most common malignant primary bone tumors of childhood after osteosarcoma, typically arising from the medullary cavity with the invasion of the Haversian system. Ewing sarcomas usually present as moth-eaten, destructive, and permeative lucent lesions in the shaft of...
Article

Leiomyosarcoma

Leiomyosarcomas are extremely rare malignant neoplasms that originate from smooth muscle cells and may be considered the malignant counterpart of a leiomyoma. They are classified as soft-tissue tumors and account for approximately 8% of malignant soft-tissue tumors 10. Pathology Location  Lei...
Article

Angiosarcoma (bone)

Angiosarcoma of bone is a malignant vascular bone tumor. These are rare and account for <1% of malignant bone tumors. The majority of these tumors arising in bone are primary; however, a tiny percentage are either radiation-induced or associated with bone infarction. Epidemiology Most common i...
Article

Pulmonary artery sarcoma

Pulmonary artery sarcomas are extremely rare tumors that originate from the intimal mesenchymal cells of the pulmonary artery. It is frequently misdiagnosed as pulmonary thromboembolism.  Epidemiology  Primary malignant tumors of the pulmonary arteries are very rare with an incidence of 0.001–...
Article

Osteochondroma malignant transformation (mnemonic)

A useful mnemonic for listing the radiological and clinical features suggestive of osteochondroma malignant (sarcomatous) transformation is 1: GLAD PaST Mnemonic G: growth after skeletal maturity L: lucency (new) A: additional scintigraphic activity D: destruction (cortical) P: pain after...
Article

Primary breast chondrosarcoma

Primary breast chondrosarcoma is a rare type of sarcoma that originates from the mammary stroma and not from the underlying bone or cartilage of the chest wall. Epidemiology The prevalence of primary breast chondrosarcoma is reported to be 0.5-1%, they represent <5% of all sarcomas 1,14. Clin...