CT IN DIAGNOSIS, TREATMENT PLANNING AND FOLLOW-UP IN CRANIOPHARYNGEOMA

  • 1 January 1977
    • journal article
    • research article
    • Vol. 153  (11) , 744-753
Abstract
Computed axial tomography [CT] of the skull has become an important part of neuroradiologic diagnostics. The intracranial CT diagnosis is completed by coronal sections which are used in processes in the posterior cranial fossa and differentiation of supra- and infratentorial dimensions and to localize tumors in the sella region. Accurate determination of tumor volume and para-, supra- and retrosellar dimensions makes possible exact operation and irradiation planning. Solid, cystic and calcified tissues of human craniopharyngiomas can be delimited. Quantitative evaluation by a computed tomogram of tumor reduction obtained by surgery and irradiation with ultrahard X-rays (42 MV) with a target volume dose of about 5000 rad is illustrated by 2 examples. Under the above mentioned radiotherapeutic conditions, 1 partially resected craniopharyngioma with cystic, calcified and solid tissues showed a 60% reduction of the tumor volume, whereas the volume of a craniopharyngioma consisting of solid and calcified parts which was not operated on was reduced by about 40% 2 wk after the end of radiotherapy.

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