Large right thigh soft tissue mass.
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A well-defined fusiform subcutaneous cystic lesion intimately related to the adjacent fascial planes is seen in the right thigh. It demonstrates high signal intensity on T1 and T2 with no signal drop on the fat saturation sequences indicating internal blood product. Multiple septations and floating fat lobules are seen. The overall findings are consistent with Morel-Lavallee syndrome.
This case demonstrates the usual location and MRI signal characteristic of Morel-Lavallée lesion. This lesion was initially mistaken for a soft tissue mass and the patient was referred to rule out this possibility. It is considered a degloving injury that occurs after trauma.
- Gilbert BC, Bui-Mansfield LT, Dejong S. MRI of a Morel-Lavellée lesion. (2004) AJR. American journal of roentgenology. 182 (5): 1347-8. Pubmed