Thrombosed External Hemorrhoid: Presents as acute, painful swelling in perirectal area. Black discoloration is due to central necrosis. Charlie Goldberg, M.D. - UCSD Catalog of Clinical Images #Clinical Thrombosed #External #Hemorrhoids #Photo #UCSDH
Clinical Professor, University of California San Diego - Division of Hospital Medicine, - Images shared with permission from the UCSD Catalog of Clinical Images - https://meded.ucsd.edu/clinicalimg/browse.htm