Kaposi Sarcoma Presenting as Retroperitoneal Lymphadenopathy: A Case Report

Our review of the case and of the literature demonstrates the many atypical ways in which KS can present. Our case highlights the importance of considering KS in the differential diagnosis for visceral lymphadenopathy in the absence of solid tumor pathology. Lastly, our case brings to light the variable clinical course of KS, which can range from minimal to explosive growth to spontaneous regression.