A case of infiltrating lipomatosis with diffuse, symmetrical distribution.

Infiltrating lipomatosis represents a distinct clinicopathological entity characterised by collections of non-encapsulated, mature lipocytes that infiltrate local tissues. The lesions are usually first observed during the first three decades of life, but congenital types exist. Although a predilection for the lower extremity exists in approximately 80% of patients, they can affect a multitude of anatomic sites. Infiltrating lipomatosis of the face, head and neck, upper and lower extremities, trunk and abdominal cavity and pelvis have all been reported. The patient presented here had symmetrical, diffuse infiltrating lipomatosis involving almost the whole body, sparing only the head, neck, fingers and toes.