Nonhealing perianal ulcer.
Knispel
J
J
University of Chicago Hospitals, Chicago, IL, USA.
Shaw
J C
JC
D001005:Anus Neoplasms / Q000151:congenital* / Q000175:diagnosis* / Q000473:pathology; D005401:Fissure in Ano / Q000175:diagnosis / Q000473:pathology; D006391:Hemangioma / Q000151:congenital* / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D007231:Infant, Newborn; D008297:Male