Preposition: of

• colon: In India approximately 30 per cent of acute intestinal obstructions are secondary to volvulus of the sigmoid colon [ 3 ] .

Converse of object

• obstruct: The mortality associated with an acutely obstructed volvulus may be up to 50 % .

Adjective modifier

• sigmoid: The diagnosis of sigmoid volvulus in our patient was confirmed at surgery.

• gastric: We present the history of a patient with an acute gastric volvulus and unexplained hypotension.

• intestinal: Factors associated with mortality and morbidity in small intestinal volvulus in the horse.

• acute: Literature 1. Anderson JR, Lee D. The management of acute sigmoid volvulus.

• small: Factors associated with mortality and morbidity in small intestinal volvulus in the horse.

Noun used with modifier

• onchocerca: Onchocerca volvulus is a nematode that causes onchocerciasis ( river blindness ) in West Africa and Central America.