soft tissue sarcoma


soft tissue sarcoma

Oncology A sarcoma that arises in muscle, fat, fibrous tissue, blood vessels, or other supporting tissues. See Sarcoma. Soft tissue sarcoma staging I A Tumor cells are morphologically similar to normal cells; tumor measures ≤ 5 cm  B Ditto; tumor ≥ 5 cm II A Tumor cells are mildly atypical; tumor measures ≤ 5 cm  B Ditto; tumor ≥ 5 cm III A Tumor cells are moderately or severely atypical/bizarre; tumor measures ≤ 5 cm  B Ditto; tumor ≥ 5 cm IV A Any cellular atypia; any sized tumor with lymph node involvement  B Any cellular atypia; any sized tumor with metastasis