Analyzing Complex Dermatologic Cases in Clinical Practice

The chapter explores the diagnostic process for challenging dermatologic cases, detailing a case involving a 60-year-old man with atrial fibrillation and PE presenting with a chest wall rash. Speakers discuss evaluating lesion characteristics, distribution, and red flags to determine the underlying cause, considering conditions like necrosis, viral causes, drug reactions, and systemic clotting issues. The discussion also includes a case of a patient with cyanosis of the nose, purpura, and black mucosal patches, exploring differential diagnoses including Reynaud's phenomenon, mucormycosis, vasculitides, and hypercoagulable states.