PubMed · 14394319
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R L DRAKE, B E STOFER, L V ZANT. 1955. Ectopic pinealoma.. https://doi.org/10.1212/wnl.5.7.518
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OBJECTIVE AND IMPORTANCE: Intracranial solitary fibrous tumors have been described previously, but intraventricular solitary fibrous tumors are extremely rare. We present what is, to our knowledge, the first reported case of solitary fibrous tumor in the third ventricle. CLINICAL PRESENTATION: A 63-year-old man presented with weakness of his lower extremities and headaches. Computed tomography and magnetic resonance imaging of the brain revealed an enhancing mass in the posterior part of the third ventricle. INTERVENTION: The tumor originated from the wall of the left internal cerebral vein and extended to the posterior part of the third ventricle. Nearly total excision was performed via an infratentorial-supracerebellar approach. CONCLUSION: The differential diagnosis of intracranial solitary fibrous tumors includes fibroblastic meningioma, meningeal hemangiopericytoma, neurofibroma, and schwannoma. The differential diagnosis in the present case was greatly helped by the immunohistochemical and ultrastructural findings, along with a disease-free 3.5-year follow-up. These findings are presented with reference to previous reports.
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OBJECTIVE AND IMPORTANCE: Diencephalic syndrome of emaciation (DS) is seen almost exclusively in infants and young children, and only two cases of DS in adults have been reported previously. We describe a case of DS associated with a third ventricle intrinsic craniopharyngioma in an adult patient. CLINICAL PRESENTATION: A 54-year-old man presented with profound emaciation, disorientation, memory loss, and psychological disorders. Computed tomographic scanning and magnetic resonance imaging of his brain disclosed a tumor within the third ventricle. The preoperative endocrinological examination indicated an elevated growth hormone level and a decreased somatomedin C level. INTERVENTION: The patient underwent partial resection of the tumor, which was adherent to the floor of the third ventricle but not to the ventricle wall, by an interhemispheric-transcallosal approach. The histological examination revealed a squamous papillary-type craniopharyngioma. The patient received 50 Gy of radiotherapy, which resulted in 90 to 95% reduction of the tumor size within 6 months, as indicated by the magnetic resonance images presented. The psychological disorders, memory disturbance, and severe emaciation improved gradually thereafter. CONCLUSION: Although extremely rare, DS can occur in an adult harboring a tumor in the anterior hypothalamus.