The morphology of the foetal sigmoid colon in the African population: a possible predisposition to sigmoid volvulus

Abstract
The elongated sigmoid colon seen in Black Africans is present in utero and occurs more frequently in Black African males. A narrow shape is more common in male foetuses and the broad shape is more common in female foetuses. These anatomical features may be the cause of the predisposition to sigmoid volvulus in Black African adults.