Normal pelvic MRI (fistula protocol)

Case contributed by Craig Hacking
Diagnosis not applicable


Previous anal fissures, now recurrent pain

Patient Data

Age: 45 years
Gender: Female

No perianal fistula, sinus tract or collection. No subcutaneous edema. The internal and external sphincters and the pelvic floor are unremarkable. No gross adnexal mass, although this is not a dedicated study. Retroflexed uterus, with a 1.8 cm myometrial/subserosal lesion on the ventral surface has been partially imaged, likely a fibroid.

No pelvic free fluid.


Incidental uterine lesion likely fibroid, partially imaged. No other abnormality demonstrated.

Case Discussion

Example of a normal perianal fistula case.

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.