Abstract
We encountered a patient with an untreated giant lipoma and report the imaging findings with a review of the literature. A 57-year-old man had a chief complaint of right neck tumor. He noticed a mass in the right cervical region in 1994, and although the mass increased, he did not seek treatment. He became impaired in daily life by the mass, and was examined for the first time at this hospital on July 29, 2003. There was giant mass on the clavicle from the chin of the right cervix. The mass had diameter of 18cm and the appearance was smooth and soft. We diagnosed the mass as lipoma on CT/MRI and performed tumorectomy under general anaesthesia on September 30, 2003. The resected giant tumor weighed 1050g and measured 18×18×9cm. The tumor was confirmed as lipoma on pathology. This was the heaviest lipoma resected in Japan according to a literature search regarding cervical lipoma. One year postoperatively there is no sign of relapse, and the course has been good.