Frontal lobe implantation of craniopharyngioma by repeated needle aspirations.

Fig. 1.-Craniopharyngioma in a 10-year-old boy. B old . Because of enlargement of the tumor, the patient had undergone multiple radiation treatments and repeated punctures of the cyst via craniotomy burr holes; the aspirated material contained cholesterol. Follow-up included routine CT scans every 6 months, which had not changed for the past 2 years. Approximately 9 months before admission, a routine CT without contrast enhancement (Fig . 1A) showed a new well-defined mass with minimal edema and calcification in the right frontal lobe. No significant change was seen in the contrastenhanced CT. This mass had a slightly higher density than the