Localized post-trauma liponecrosis, also called lipoatrophy, is a beni
gn disease with no functional consequences but does cause important ae
sthetic problems. Diagnosis is often missed. Necrosis of the adipocyte
s occurs after direct trauma and absorption of the haematoma. It is im
portant to search for favouring factors and order the necessary examin
ations. The therapeutic strategy is presented.