Case Presentation: A healthy 21-year-old female presented to the children’s hospital with a one-week history of worsening bilateral calf pain, unilateral right lower extremity (RLE) swelling, and cool extremities. Symptoms began after a 12-hour work shift, accompanied by a diffuse erythematous papular rash and intermittent asymmetric joint pain. Her medical history included streptococcal pharyngitis treated [...]