cases, joint Week 232: Case 4 April 26, 2023 pathadmin 1. Presented by Jonathan Epstein, M.D. and prepared by Todd Sheridan, M.D.A 27-year-old female presented with a mass in the left anterior foot and extensor tendon. The mass was extensive and crossed the ankle joint, extending up into the distal calf along the same tendon bundle. The mass had a bluish-reddish tint and several cc"s of bloody fluid were expressed upon excision.images/7.25.05.JIEcase4a.jpgimages/7.25.05.JIEcase4b.jpgimages/7.25.05.JIEcase4c.jpgimages/7.25.05.JIEcase4d.jpgLocalized giant cell tumor of tendon sheathHemosideric synovitisPigmented villonodular synovitisSynovial sarcoma Loading...