Diverticula are outpouchings of a hollow viscus and can be either true or false.
Diverticula is the correct Latin plural form. 'Diverticuli' and 'diverticulae' are erroneous and should not be used.
- contains all layers of the wall of the parent organ (typically mucosa, muscular layer and serosa)
- e.g. Meckel diverticulum
- does not contain all layers (typically mucosa pushed though defect in muscular layer)
- the vast majority of all diverticula
- e.g. colonic diverticulum
Additionally diverticula may be subdivided according to mechanism of formation into:
- due to pulling of the wall of the viscus
- e.g. tracheal diverticulum
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