1. From the Department of Anatomic Pathology, University of California, San Francisco, (Drs Nguyen, Phillips, and Kakar); the Department of Pathology, Yale University School of Medicine, New Haven, Connecticut (Dr Jain); the Department of Pathology, Johns Hopkins, Baltimore, Maryland (Dr Torbenson); the Division of Anatomic Pathology, Mayo Clinic, Rochester, Minnesota (Dr Wu); the Department of Path