MRI findings in deep infiltrating endometriosis: A pictorial essay

Endometriosis is an important gynaecological disorder which can impact significantly on an individual's quality of life and has major implications on fertility. Deep infiltrating endometriosis is a severe form of endometriosis which can cause obliteration of anatomic compartments. Laparoscopy remains the gold standard for diagnosis of endometriosis, although is an invasive procedure that has the potential to be hindered by obliterative disease. Ultrasound is often employed as the first-line imaging modality when endometriosis is suspected, however, MRI is more accurate in assessment of complex disease. Pre-operative MRI is highly specific in the diagnosis of endometriosis and characterization of disease extent, and plays a key role in guiding surgical management. MRI findings in deep infiltrating endometriosis are described.