Computerized tomography findings in pediatric patients with posterior fossa lesions.
The posterior fossa (PF) is a common site of lesions in the brain during childhood and infancy. Sixty pediatric patients with PF lesions shown on CT scans are presented. The most common lesions (48.4%) were intra-axial tumors, such as astrocytomas, medulloblastomas, and ependymomas. The tumors were relatively large at the time of diagnosis. The largest were medulloblastomas (mean maximal diameter 45.6 +/- 9.7 mm). Other abnormal findings of the PF were congenital anomalies, vascular lesions, hypoplasia and atrophy. A common approach to PF lesions is offered, emphasizing the variability, the incidence, and the different CT features of the lesions.
Reider-Groswasser
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Department of Radiology, Ichilov Hospital, Tel Aviv, Israel.
Catz
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Harel
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D000293:Adolescent; D001254:Astrocytoma / Q000000981:diagnostic imaging; D001284:Atrophy / Q000000981:diagnostic imaging; D001927:Brain Diseases / Q000000981:diagnostic imaging* / Q000473:pathology; D001932:Brain Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology; D002675:Child, Preschool; D003388:Cranial Fossa, Posterior; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008527:Medulloblastoma / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed