LIPOSARCOMA OF THE POSTERIOR MEDIASTINUM IN A CHILD

Liposarcoma is rare in children and rarely occurs in the posterior med iastinum in any age group. A massive intrathoracic tumor in a 17-year- old young man was a diagnostic dilemma; preoperative radiographic eval uation and biopsy fed us to believe it was a teratoma. At operation, a poorly differentiated myxoid liposarcoma originating from the posteri or mediastinum was found and excised. To our knowledge, this is the fi rst liposarcoma of the posterior mediastinum reported in a patient les s than 18 years old.