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Poster presented at the 5th Annual Meeting (3-4 of Novembre, 2016; placed in Axis Vermar Conference & Beach Hotal, Póvoa de Varzim, Portugal)

Computed Tomography (CT) has been very useful in the follow-up of patients with brain tumors. Soon after the craniotomy, CT would show any residual tumor if an incomplete excision was done. CT has been essential when one needs to evaluate any deterioration in the patient's neurological status post operatively. In such instances, CT may detect brain edema, hematoma, hydrocephalus and the presence of air. CT findings are more accurate than those obtained from conventional neuroradiology or from intracranial pressure monitoring, being also more innocuous than those methods. Later in the post operative follow-up, CT allows, besides precocious diagnosis of tumor recurrences, a good evaluation of the results obtained by chemiotherapy or radiotherapy. When hydrocephalus is accompanying the primary pathology, ventricular size can be rapidly evaluated by CT. Difficulties may arise when one wishes to differentiate CT images of radionecrosis from tumor recurrences at least in the initial stages.

São apresentados os achados radiológicos em um caso de papiloma calcificado do plexo coróide. A case of calcified choroid plexus papilloma in a 7 years old child is reported. The radiologic findings are discussed.

A realização da tomografia computadorizada em decúbito lateral ou ventral, pode ser útil no diagnóstico diferencial entre atrofia cerebral e coleção subdural. Alguns casos são apresentados. The differencial diagnosis between brain atrophy versus subdural effusion in children has shown some difficulties in a few cases, mainly when the frontal subarachnoid space is very large on computed tomography. We think that a simple procedure, that is, CT scans in the lateral and prone position following the standard examination, may be worth to clarify those cases of doultfoull diagnosis.