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Correlation Of Clinical And Pathological Features In Surgically Treated Craniopharyngiomas

Tim E. Adamson, Otmar D. Wiestler, Paul Kleihues, M. Gazi Yaşargil

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✓ Surgical specimens of 104 craniopharyngiomas from 93 patients were reviewed and characterized histopathologically. They were found to have either a classic adamantinous or a squamous papillary structure. The clinical features of each group were then assessed. The frequently solid (50%), always uncalcified squamous papillary tumor type was found in one-third of the adult patients (≥ 20 years) but did not occur in children. It was associated with a good functional postoperative outcome (84.6%). There have been no cases of tumor recurrence in the squamous papillary group. However, in the group with the adamantinous type of craniopharyngioma, the recurrence rate was 13% in adult patients and 9% in children. When compared to the adult adamantinous cases, the incidence of visual deficits was lower in the squamous papillary group (75% vs. 84%) but the incidence of endocrine abnormalities was higher (75% vs. 52%). Thus, the preoperative, operative, and postoperative features of the two types of craniopharyngioma were found to be distinctly different in adults and children.