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Sagittal cross-sections of typical female and male anatomy of the rectum, with the peritoneal cavity depicted in blue.
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Illustrations of the oblique axial rectum. Depicting the anterior peritoneal fold, mesorectal fascia, mesorectum, longitudinal muscle layer, submucosa and mucosa.
Note the rectum is not always surrounded by mesorectal fascia.
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Illustration of the rectum in the coronal plane.
Case Discussion
These are simplified illustrations of the rectum in different planes. It is essential to understand the relationship of the rectum to the peritoneal folds and mesorectum when staging rectal cancer.
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