This document presents the case of a 65-year-old male who presented with fever, skin lesions, headache, and abdominal pain. He had a 4-year history of intermittent fever, joint pain, skin nodules, cough, eye redness, testicle pain, loss of appetite, and weight loss. Extensive testing revealed elevated inflammatory markers, skin biopsy showing vasculitis, and other nonspecific findings. The document outlines diagnostic approaches including pattern recognition, ruling out serious conditions, and generating hypotheses from the history and exam. The final diagnosis was not revealed.