Kaposi's sarcoma in a patient with SLE

Area of Science:

• Immunology
• Oncology
• Rheumatology

Background:

• Systemic lupus erythematosus (SLE) is an autoimmune disease often managed with immunosuppressive therapies, including corticosteroids.
• Corticosteroids and other immunosuppressants can increase the risk of opportunistic infections and malignancies.
• Kaposi's sarcoma (KS) is a cancer associated with human herpesvirus 8 (HHV-8) and immunosuppression.

Observation:

• A 31-year-old female patient with SLE, undergoing chronic corticosteroid treatment, presented with Kaposi's sarcoma.
• The patient received a single dose of intravenous cyclophosphamide for central nervous system vasculitis.
• She subsequently developed disseminated Kaposi's sarcoma involving the skin, lungs, and other visceral organs.

Findings:

• This case represents the first documented instance of widespread Kaposi's sarcoma in a patient diagnosed with SLE.
• The rapid progression and dissemination of KS occurred despite immunosuppressive treatment.

Implications:

• This case underscores the critical need for vigilant monitoring of opportunistic infections and malignancies in SLE patients, particularly those on long-term immunosuppression.
• Further research may be warranted to understand the specific interplay between SLE, immunosuppressive therapies, and the development of Kaposi's sarcoma.
• Clinicians should consider KS in the differential diagnosis of skin lesions or visceral masses in SLE patients receiving immunosuppressive treatment.