Drooping moustache sign (endopelvic fascial defect)

Last revised by Vikas Shah on 28 Aug 2020

The drooping moustache sign refers to the appearance caused on axial pelvic MR images by posterior prolapse of the fat in the retropubic space, akin to the drooping corners of a moustache, due to loss of integrity of the urethral suspensory ligaments and level 3 endopelvic fascia.

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