[Clinical features and CT scan findings of supratentorial ependymomas and ependymoblastomas].
The clinical courses and CT scan findings of 12 cases of supratentorial ependymoma and ependymoblastoma were reviewed. The age of the patient of ependymoma ranged from 3 years to 34 years, with an average age of 16 years. The follow-up time ranged from 2 months to 9 years and 10 months. All of the six patients are still alive. The age of the patients of ependymoblastoma ranged from 7 months to 34 years, with an average age of 17 years. During the follow-up period from 2 weeks to 6 years and 4 months, four patients died. Supratentorial ependymomas and ependymoblastomas show the following characteristic features of CT scans: Calcification: The incidence of calcification was 50% in ependymoma-group, and 100% in ependymoblastoma-group. Cyst formation, ring-enhancement: The cyst formation was noticed in both groups. In ependymoma-group a smooth ring-enhancement pattern and the strongly enhanced mural nodule-like contour were found, but in ependymoblastoma-group, the cyst wall was enhanced in irregular shape. Perifocal edema and mass effect: Considerable mass effect was noticed in both groups. Perifocal edema was slight in many cases of ependymoma-group, but mostly prominent in ependymoblastoma-group. CT scan findings of recurrent tumor: In ependymoma-group, recurrent tumor showed the same characteristics of CT scan as the initial ones. In ependymoblastoma-group, cystic portion decreased in size and irregular shaped solid portion increased in recurrence.
D000293:Adolescent; D000328:Adult; D001932:Brain Neoplasms / Q000175:diagnosis* / Q000628:therapy; D002540:Cerebral Cortex; D002648:Child; D002675:Child, Preschool; D003131:Combined Modality Therapy; D004806:Ependymoma / Q000175:diagnosis* / Q000628:therapy; D005260:Female; D005500:Follow-Up Studies; D005625:Frontal Lobe; D006801:Humans; D008297:Male; D009778:Occipital Lobe; D010296:Parietal Lobe; D013702:Temporal Lobe; D014057:Tomography, X-Ray Computed