Soft-tissue sarcomas are rare malignancies of mesodermal origin. Common sites of involvement include the extremities, trunk, retroperitoneum, and the head and neck. Soft-tissue sarcomas of the extremities and pelvis are the most relevant to the orthopaedic surgeon. The patient with extremity soft-tissue sarcoma typically presents with a painless, enlarging mass. Advanced imaging techniques and ...

Fusion genes: Ewing sarcoma: t(11;22)(q24;q12) EWS-FLI1 t(21;22)(q22;q12) EWS-ERG t(7;22)(p22;q12) EWS-ETV1 others FUS-ERG, EWS-FEV, Desmoplastic SRCT: t(11;22)(p13;q12) EWS-WT1 Extraskel myxoid chondrosarc: t(19;22)(q22;q12) EWS-TEC(CHN) Malignant mesenchymoma: t(11;22)(q24;q12) EWS-FLI1 Alveolar rhabdomyosarcoma: t(2;13)(q35;q14) PAX3-FKHR t(1;13)(p36;q14) PAX7-FKHR Myxoid round cell liposarc...

Soft tissue sarcomas account for about 1% of all malignancies. The increase in incidence of soft tissue sarcomas during the recent decades may predominantly be attributed to AIDS-related Kaposi's sarcoma; when this tumor is excluded, conclusive evidence for an age-adjusted increase is lacking. Beside the well investigated role of the human immunodeficiency virus 1 (HIV-1) and the human herpesvi...

background:   although the majority of soft tissue masses are benign, it is important to consider malignancy in differential diagnoses. because most soft tissue sarcomas present as a painless mass, clinicians must watch for signs suggestive of malignancy, including large size, rapid growth, and site deep into the deep fascia.the purpose of this study was to determine the relative prevalence acc...

PURPOSE The PI3K/Akt/mTOR prosurvival pathway is frequently up-regulated in soft tissue sarcoma. Mammalian target of rapamycin (mTOR) inhibitors, such as rapamycin, have recently shown clinical benefit in soft tissue sarcoma, and mTOR inhibition has also been associated with radiosensitization of carcinoma and endothelial cells. This study tested the hypothesis that rapamycin radiosensitizes so...

Alveolar soft part sarcoma is a very uncommon soft tissue malignancy which accounts for <1% of soft tissue sarcoma. It is a malignant and highly vascular tumor arising most commonly in the musculature of the lower extremities, with metastasis primarily to the lungs, bones, and brain. Cardiac metastasis is very rare and only 5 cases have been reported in the literature so far. We report a case o...