Revision 5 for 'Mushroom cap sign'All Revisions
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.
Hypertrophic muscularis propria appears as heterogenous low signal intensity surrounded by high signal intensity of mucosa and submucosa. This gives characteristic appearance of mushroom cap.