Necrotizing leg gangrene from invasive cutaneous Kaposi sarcoma, reversed by pegylated liposomal doxorubicin.

Introduction: Although rare, Kaposi sarcoma is the most common malignant neoplasm associated with human immunodeficiency virus (HIV) infection. Several agents have now been approved in the treatment of this malignancy and are used with varying degrees of success.

Case Report: We present a unique case of a 64-year-old man with well-controlled HIV infection who developed necrotizing leg gangrene from invasive cutaneous Kaposi sarcoma. He responded very well to systemic chemotherapy, thereby avoiding limb amputation.

Management And Outcome: Pegylated liposomal doxorubicin (PLD) at a dose of 20 mg/m2 every 3 weeks was utilized, with a near-complete response after six cycles of therapy. The patient continues to receive maintenance treatment with PLD. His HIV infection remains in excellent control, with a high-normal CD4 T-cell count. Periodic echocardiogram evaluations have not shown any decline in left ventricular ejection fraction (LVEF) over time.

Conclusion: Most patients with Kaposi sarcoma achieve partial responses to treatment with PLD. Our case illustrates that near complete and complete responses are possible with this agent, leading to potential limb salvage in necrotizing gangrene.