A massive anterior mediastinal tumor was discovered in a 9-year-old gi
rl with long-standing symptoms of asthma. Preoperative computed tomogr
aphy (CT) scan and magnetic resonance imaging (MRI) results suggested
the presence of a thymolipoma, a rare benign tumor of the thymus. Few
cases have been reported in the literature, although the histological
and radiographic features have been well described. This case confirms
previously reported characteristics and also illuminates new aspects
of clinical presentation and perioperative management. Copyright (C) 1
997 by W.B. Saunders Company.