Case Presentation: A 24-year-old Hispanic male with morbid obesity, hypertension, hyperlipidemia, and class IV/V lupus nephritis on immunosuppressive therapy presented with a one-week history of progressive pain, erythema, and swelling in the lower abdomen and extremities. Symptoms included fever, shortness of breath, and diarrhea. Physical examination revealed a tender, erythematous rash with violaceous discoloration over [...]