Thalamic tumors in children

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Abstract
✓ The authors review the cases of 60 children (aged 5 months to 18 years) with thalamic tumors who were seen at The Hospital for Sick Children between 1951 and 1983. The diagnosis of thalamic tumor was based on neuroradiological studies; 33 children were first seen in the pre-computerized tomography (CT) era and 27 since the advent of CT scanning. Histological diagnosis was obtained in 37 patients at the time of operation. A further four tumors were verified histologically at autopsy. Thirty-six patients required cerebrospinal fluid shunt placement. Sixteen patients had no surgery on their tumor, three underwent needle biopsy, 20 underwent open biopsy, and 21 had partial resection. Forty-four patients were irradiated. All 20 patients with malignant tumors died, with a mean survival time of 1.1 years. Of 19 patients with benign tumors, 11 died, with a mean survival time of 5.3 years, and eight are still alive after a mean period of 7.2 years since diagnosis. Based on this series, the authors recommend open biopsy of thalamic tumors (and resection if deemed safe), followed by radiation in selected cases.