Polypoid Kaposi Sarcoma Involving the Lower Gastrointestinal Tract: Clinicopathologic Study of 15 Cases. - Suster DI; Rastegar S; Salviato T; Wang W; Collins K; González IA; Choi WT; Chen HH; Gonzalez RS; McHugh K; Salomao M; Charville GW (Archives of pathology & laboratory medicine, 2025)