<prompt> Mushroom cap sign in MRI is seen in:-IIeocaecal TBPulmonary endometriosisOvarian endometriosisRectal endometriosis  <response>: Rectosigmoid endometriosis: - The endometrial deposit on rectum causes proliferation of muscularis propria and the surrounding tissues which is seen as mushroom cap sign in T2 weighted MRI. 