The pararectal (anorectal) nodes lie in the mesorectal fat around the rectum, along the superior rectal vessels. They are the first nodes for the rectum.
| Location | Mesorectum, on the muscle coat of the rectum and along the superior rectal artery |
|---|---|
| Receives lymph from |
|
| Lymphatic drainage |
Filter lymph from the rectum.
Total mesorectal excision removes these nodes in an intact fatty envelope, which greatly reduces the recurrence of rectal cancer. MRI assesses their involvement before deciding on preoperative treatment.
Spread of rectal cancer to mesorectal nodes, influencing treatment before surgery.
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