Irradiation-induced mesodermal tumors of the central nervous system: report of two meningiomas following X-ray treatment for gliomas.
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Two cases of cardiac myxoma with secondary involvement of the brain and death are reported. In one case, tumor emboli to the middle cerebral artery caused massive cerebral infarction, while in the other case true cerebral metastasis developed in the cerebrum and cerebellum, with rapid demise ensuing in both patients. It is emphasized that an emergency exists in cases ihat prompt echocardiography and computerized tomography of the brain are indicated. The second case represents the only instance of cardiac myxoma behaving as a true malignant neoplasm with actual invasion of the neural tissues recorded in the literature.
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The now nine years old girl with growth retardation, started to be ill with otitis and then diabetes insipidus of central origin at 1974. A treatment with lysin-vasopressin is prescribed. The PNEG in May 1976 shows a little, pea like, suspicious, supra-sellar nodule who is not surgically explored since they was no ophtalmologic symptoms and because a normal CT scan. Corticoid and thyroid substitutive therapy is added until September 1977 when the general status becomes impaired and vomiting starts. Also because some visual loss, a new neuroradiological study is performed showing a supra-sellar tumour and a fourth ventricle mass. The CT scan asserts the double intracranial expansive process and a posterior fossa craniotomy is done with subtotal resection of a vermian tumour and Torkildsen drainage. The histology is : Immature Dysembryoma (seminoma type) or germinoma. The follow-up was good under hormonal care. X Rays Therapy over the posterior fossa, the suprasellar region, the brain and the spinal channel was instaured. Four months later, the CT scan shows normal sized ventricles and no tumour mass at all. This case gives the authors opportunity for comments and to study the concerned literature.
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