Search results for "Pinealoma"
showing 5 items of 5 documents
A Case Report of Adult Pineoblastoma Occurring in a Pregnant Woman.
2019
Background/aim Pineoblastoma of the adult age is an uncommon tumor with only 200 cases reported. A standardized approach for an optimal adjuvant strategy is currently lacking. The case presented herein also deals with the issue of central nervous system tumors in pregnancy. Case report A 21-year-old pregnant woman presented with massive hydrocephalus due to a mass in the pineal region detected with MRI. After positioning an urgent ventricular derivation, a cesarean section was performed. During a third ventriculocisternostomy, a biopsy revealed a pineoblastoma. After a maximal safe resection, postoperative craniospinal irradiation for a total dose of 36 Gy plus a sequential boost to the tum…
Innovations in the Art of Microneurosurgery for Reaching Deep-Seated Cerebral Lesions.
2019
Deep-seated cerebral lesions have fascinated and frustrated countless surgical innovators since the dawn of the microneurosurgical era. To determine the optimal approach, the microneurosurgeon must take into account the characteristics and location of the pathological lesion as well as the operator's range of technical expertise. Increasingly, microneurosurgeons must select between multiple operative corridors that can provide access to the surgical target. Innovative trajectories have emerged for many indications that provide more flexible operative angles and superior exposure but result in longer working distances and more technically demanding maneuvers. In this article, we highlight 4 …
Measurements of the volume and density of intracerebral tumors by CT following therapy.
1982
For the interpretation of curative measures in patients with cerebral tumors CT is of increasing importance. The therapeutic effects can be demonstrated by close follow-up studies without any of the disadvantage of invasive neuroradiological methods. Our investigations of 125 patients with cerebral tumors are based on volume and density determinations. The CT studies of removed or inoperable tumors followed by radiation and/or cytostatic therapy prove that the best results follow a combination of both. In the present cases however, if CT proves postoperatively, at the end of radiation or at the beginning of the application of cytostatics that there is a residual mass, a complete remission c…
The diagnostic value of CT for radiotherapy of cerebral tumors
1978
The paper deals with CT followup studies on 73 patients with cerebral tumors who received radiotherapy. The value of CT for the indication of radiotherapy, for followup therapy and for the demonstration of therapeutic success are discussed. Since the cerebral tumors become visualized by means of CT in their entire extent and can be differentiated from perifocal edema, the question arises whether radiotherapy should consist of higher doses in the future. It is also suggested that the "clinical malignancy" may be used to compare the behavior of cerebral tumors when there is no exact histological classification. The possible histopathological effects of radiotherapy (edema, necrosis) and their…
Pleomorphic pineocytoma with extensive neuronal differentiation: report of two cases
1994
Two pineal parenchymal tumors are presented, arising in a 54-year-old man and a 72-year-old woman; respectively. They showed isomorphic, cellular areas of small cells, often with characteristic pineocytomatous rosettes, and of medium-sized cells, as well as less cellular regions with highly pleomorphic, often ganglioid large cells. Immunohistochemistry disclosed extensive neuronal differentiation. There was intense positivity for neurofilament protein and microtubule-associated protein 2 in the pleomorphic areas and more variable expression in the isomorphic regions. Diffuse synaptophysin positivity was seen, accentuated along the borders of pleomorphic cells and in the rosettes, as well as…