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PubMed1976

Retroperitoneal liposarcoma.

The diagnosis of retroperitoneal fatty tumour is not extremely difficult provided that the possibility of its presence is kept in mind by the surgeon in all cases of distended abdomen in an apparently well-nourished patient. A careful clinical examination and a good excretory pyelogram are very important in the diagnosis. Surgical excision requires a considerable amount of patience and boldness on the part of the surgeon and is always gratifying, even if the tumour cannot be totally removed. Three cases of retroperitoneal tumour treated by us are presented. All three had had previous unsatisfactory treatment, the first two being incorrectly diagnosed and the third being inadequately excised. The pathology, diagnosis and treatment of these tumours are briefly discussed.

Adult↗
PubMed2005

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. RESULTS: All patients were treated by marginal excision alone. A local recurrence was seen in five patients (8%). Three recurred once and two recurred twice. No patient had a metastasis or died as a result of the tumour. No lesion dedifferentiated. CONCLUSION: We believe the term atypical lipoma is appropriate for these tumours, as they appear not to have any metastatic potential, merely a propensity to recur locally. The chance of dedifferentiation is small and radiotherapy may play a role in its causation. We suggest that a simple marginal resection (shelling-out) is adequate treatment for these lesions. Radiotherapy should not be used.

Adolescent↗