Pseudoangiosarcoma and cutaneous collagenous vasculopathy in a patient on a Bruton’s tyrosine kinase inhibitor - Alison H. Kucharik, MD; Nina B. Curkovic, BS; Julio C. Chavez, MD; Kenneth Y. Tsai, MD, PhD; Andrew S. Brohl, MD; James M. Grichnik, MD, PhD (JAAD Case Reports, 2024)