Morel-Lavallée Lesion: Report of a Case of Unknown Mechanism

Abstract

Morel-Lavallée lesions are cystic lesions occurring between the subcutaneous tissue and the underlying layer of a fascia. The most frequent mechanism of occurrence is posttraumatic, usually after degloving injuries. The chain of events leading to the occurrence of this lesion is the formation of a potential space between the subcutaneous tissue and the firmly attached deep fascia, which in turn fills with blood and/or lymph and/or necrotic fat, secondary to disruption of the capillaries. We present a case of a 74-year-old male patient with a cystic lesion of the lateral surface of his left thigh increasing in size over a period of six months. Despite the meticulous history acquisition, we were unable to reveal any alleged mechanism of injury of the area. The patient underwent an MRI which revealed an ovoid cyst. The patient underwent surgical excision of the cyst. The pathology examination revealed a simple cyst, lined by a fibrous capsule and filled with serosanguineous fluid, thus confirming the diagnosis. The patient made a full recovery and since has been asymptomatic.

Endoscopic Resection of Chronic Morel–Lavallée Lesion of the Knee

“…To this end, surgical debridement with resection of the pseudocapsule is a more definitive treatment option. 5,12 We believe that endoscopic approach is better than open approach in prevention of post-operative wound complication. However, endoscopic approach still has the risk of inadequate debridement to prevent recurrence and risk of spreading of the bacteria to the surrounding tissue.…”

Morel-Lavallée Lesion: A Case Report of a Large Post-Traumatic Subcutaneous Lumbar Hematoma and Literature Review

“…Our patient was fortunate enough to have not sustained skeletal injuries, despite being involved in a high kinetic trauma. Kontis et al reported a case of a 74-year-oldmale patient with a cystic lesion of the lateral surface of the left thigh in which a meticulous history acquisition failed to ascertain an alleged mechanism of injury [28].…”

Morel-Lavallée lesion in a ‘non-traumatic’ thigh: a diagnostic challenge!

“…Prompt treatment is paramount as neglected cases may get infected and lead to extensive skin necrosis. Also delay in treatment leads to formation of pseudocapsule, making complete resolution difficult 8 . Conservative management is most effective in cases presenting early.…”