RT Journal A1 Anakwenze, Oke A. A1 Trivedi, Vikas A1 Goodman, Arlene M. A1 Ganley, Theodore J. T1 Concealed Degloving Injury (the Morel-Lavallée Lesion) in Childhood SportsA Case Report JF The Journal of Bone & Joint Surgery JO The Journal of Bone & Joint Surgery YR 2011 FD December 21 VO 93 IS 24 SP e148 1 OP 4 DO 10.2106/JBJS.K.00219 UL http://dx.doi.org/10.2106/JBJS.K.00219 AB Morel-Lavallée lesions (MLLs), described in 1853 by Maurice Morel-Lavallée, are uncommon closed internal degloving injuries in which the subcutaneous tissues are stripped off the fascia with a hematoma and, in some cases, necrotic fat1-4. These lesions are most commonly noted with high-energy pelvic trauma1,3 and can require weeks to resolve. Accurate diagnosis is delayed in up to one-third of patients because of inconsistent clinical presentation and because initial skin bruising can mask the importance of the underlying soft-tissue injury5. These lesions occur less frequently in the knee region; knee MLLs have been reported in professional football players6.