Clinical outcomes of deep atypical lipomas (well-differentiated lipoma-like liposarcomas) of the extremities.

Aim: Controversy exists with regard to the nomenclature, treatment and outcome of a group of well-differentiated lipomatous tumours sometimes labelled as atypical lipomas. The purpose of the present paper is to attempt to clarify these controversies by reporting our experience with this lesion.

Methods: The clinical features and follow up of 61 patients with the diagnosis of deep atypical lipoma and a minimum two-year follow up were examined.