An extremely rare yet potentially fatal complication of colonoscopy is
reported. A 52-year-old female developed a splenic subcapsular hemato
ma following routine colonoscopy. Conservative treatment was successfu
l. In the English literature, only 14 similar cases have been reported
. Treatment of a splenic flexure lesion, previous surgery with splenoc
olic adhesions, and inflammatory bowel disease increase the risk of su
ch a complication. Increased awareness by surgeons and gastroenterolog
ists should lead to prompt treatment and favorable outcome.