Endoanal ultrasound
Medical diagnostic method
From Wikipedia, the free encyclopedia
Endoanal ultrasound is a type of medical investigation which uses ultrasonography to show images of the structures of the anal canal.[1] It is used in the investigation of some anorectal symptoms, e.g. fecal incontinence or obstructed defecation.[2]
| Endoanal ultrasound | |
|---|---|
| Purpose | images structures of anal canal |
Endorectal ultrasound is a similar investigation but the ultrasound probe is used to image the rectum and surrounding tissues. It is used to image lesions in the rectum, for example a tumor caused by colorectal cancer and to assess local lymph node involvement.[3][4]
