Case Presentation: Case 1A 49 year old male without past medical history presented to the hospital with 2 weeks of painful bilateral ankle swelling followed by chest pain, cough, and fever. He denied family history of autoimmune disease. Chem 7 and complete blood count were unremarkable. Lower extremity ultrasonography was negative for deep venous thrombosis. [...]

Case Presentation: A 40-year-old Hispanic male with a history of heart failure, hypothyroidism, and pre-diabetes was admitted for a warm, itchy, and painful rash on his extremities, accompanied by swelling in his upper limbs. He also experienced joint pain and stiffness in his elbows, knees, ankles, wrists, and back, without fever. Examination revealed pink, warm, [...]