“…T h e development of gastric ulceration is one of the rccognized complications of trichohezoar : it occiirs in IO<C) of cases, and in one-third of these cases a perforation develops ( D e Bakey ct alii, 1938 : Schwarz, 1950). To our knowledge, in all previously reported cases of general peritonitis following perforation of an ulcer, the patient has died (Aird, 1949 ;Schwarz, 1960). This has been ascribed to the particularly virulent type of peritoneal inflammation that occurs.…”