[A case of intraosseous lipoma in the frontal bone].

A case of intraosseous lipoma in the frontal bone was reported. A 62-year-old woman had a hard tumor affecting the right frontal bone. The slowly growing tumor was first noticed when she was in her late teens. The completely excised right frontal lesion was composed of mature adipose tissue with abundant fibrous stroma. Intraosseous lipoma affecting the skull is extremely rare, with only 17 cases having been reported previously. Presurgical diagnosis of intraosseous lipoma of the skull is difficult because of its non-specific radiological features. Pathological study is indispensable for a correct diagnosis.