Mushroom cap sign

Mushroom cap sign is one of the important signs of deep rectosigmoid endometriosis seen on T2 weighted MRI sequence. It indicates the submucosal involvement in rectosigmoid region.

Radiographic appearance

MRI

Hypertrophic muscularis propria appears as heterogeneous low signal intensity surrounded by high signal intensity of mucosa and submucosa. This gives characteristic appearance of mushroom cap.

Share article

Article information

rID: 26022
Section: Signs
Tags: stub, refs, cases
Synonyms or Alternate Spellings:
  • mushroom cap sign of rectosigmoid endometriosis

Support Radiopaedia and see fewer ads

Updating… Please wait.
Loadinganimation

Alert accept

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

Alert accept Thank you for updating your details.