Endometriosis (ovarian endometrioma and pararectal implant)

Case contributed by Dr Maxime St-Amant


Dysmenorrhea, menorrhagia.

Patient Data

Age: 40 years
Gender: Female

MRI shows bilateral ovarian lesions with characteristic T2 shading (shading sign), with slight signal intensity layering in the left lesions. This is compatible with bilateral endometriomas.

A more subtle finding in this case is a nodular implant located on the right side of the superior rectum, with intermediate signal in T1 and T2. In the clinical context, it is compatible with an endometriosis implant. It is easier to see on the sagittal images (not shown here).

Case Discussion

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Case information

rID: 19077
Published: 5th Aug 2012
Last edited: 14th Aug 2019
System: Gynaecology
Inclusion in quiz mode: Included

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