Morel-Lavall ? e lesions are post-traumatic, closed degloving injuries occurring deep to subcutaneous plane due to disruption of capillaries resulting in an effusion containing hemolymph and necrotic fat.
Magnetic resonance imaging (MRI) is the modality of choice
Morel-Lavall ? e effusions may be associated with pelvic, acetabular fractures or may also occur with blunt trauma in the absence of fracture
Clinically, Morel-Lavall ? e lesions usually present as an enlarging painful lesion ?