sigmoid mesocolon hernia

Intersigmoid hernias, also known as sigmoid mesocolon hernias, (alternative plural: herniae) occur when small bowel loops protrude into a peritoneal pocket (intersigmoid fossa) formed between two adjacent sigmoid segments and their mesentery.

Epidemiology

Sigmoid mesocolon hernias account for ~5% of all internal hernias .

Pathology

Some authors divide sigmoid mesocolon hernias into three categories :

• intersigmoid hernia
• transmesosigmoid hernia
• intermesosigmoid hernia

It is difficult, maybe impossible, to distinguish these subtypes preoperatively with no clear radiographic sign identified to distinguish among the three subtypes . Thus, most radiologists and surgeons just refer to intersigmoid hernias, rather than trying to differentiate between them.

Siehe auch:

• innere Hernien

und weiter:

• transmesocolic hernia