title: Case records of the Massachusetts General Hospital. Weekly clinicopathological exercises. Case 49-1991. A 46-year-old man with a mass in the popliteal fossa.
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D007718:Knee Injuries / Q000150:complications; D008297:Male; D008875:Middle Aged; D011152:Popliteal Vein / Q000473:pathology*; D012865:Skiing / Q000293:injuries; D012983:Soft Tissue Neoplasms / Q000175:diagnosis; D013924:Thrombophlebitis / Q000209:etiology / Q000473:pathology*