Abstract
Purpose: Morel - Lavallee lesions is post - traumatic effusion at subcutaneous layer. Early management of Morel - Lavallee lesion is percutaneous drainage and compression. Surgical excision is recommended for cases that are chronic. Method: 41 - year old male patient had slow growing, painful mass on left thigh, which has been present for 3 years. He had a history of blunt trauma 3 years ago. Computed tomography presented $10{\times}10{\times}5cm$ sized cystic mass on left thigh, between subcutaneous fat layer and muscle fascia layer. The mass was surgically removed and biopsy was performed. Result: Histopathological examination shows chronic inflammation and fibrotic change. After 6 month follow - up period, postoperative course was uneventful. Conclusion: We performed surgical excision of Morel - Lavalle lesion in a patient who had trauma 3 years ago. We report a case of Morel - Lavallee lesion with the review of the literatures.