INTRODUCTION: The Morel-Lavallée lesion is an infrequently described, 
post-traumatic closed de-gloving wound that results from separation of the skin 
and subcutaneous tissues from the underlying deep fascia as a result of shearing 
forces that tear perforating vessels and lymphatics. This condition is rare in 
children and to our knowledge it represents the youngest case of Morel-Lavallée 
lesion yet reported.
PRESENTATION OF CASE: We report on a twelve-month-old girl who presented after a 
motor vehicle accident with a tender fluctuant mass of the back and buttocks. 
Computed tomography revealed a large but discrete fluid collection between the 
subcutaneous fat and the deep fascial planes, extending from the posterior 
thoracic paraspinal soft tissues to the right gluteal region. A diagnosis of 
Morel-Lavallée lesion was made. This patient was managed with serial 
ultrasound-guided percutaneous drainage and compression bandages. The patient 
did well and was subsequently discharged. There was no recurrence of the lesion 
on follow-up.
DISCUSSION: The Morel-Lavallée lesion is a rare consequence of abrupt high 
impact trauma. There is no accepted management approach and a variety of 
conservative as well as surgical options exist. Goals of management include 
drainage, debridement and meticulous dead space management to prevent 
recurrence.
CONCLUSION: The Morel-Lavallée lesion is a rare finding in children involved in 
high impact trauma and prompt intervention is crucial to prevent complications. 
Image-guided drainage is a rational management approach with excellent outcomes.