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Gliosarcoma is a rare subtype of glioblastoma, IDH wild type. Its characteristic features are a biphasic configuration with mixed glial and mesenchymal components. Here in, we present a rare case of Gliosarcoma that has been operated in our clinic in the last 10 years. Patients with gliosarcoma pathology results were collected from the ones operated in our faculty within 10 years. Patients from all age groups were included in the study. 1 of 11 gliosarcoma cases was described in detail. Seven of the cases were male, while 4 were female. Regarding tumor location, six 6 were located in the right, while 5 were in the left hemisphere. The average survival time of all 11 patients was 11 months. In 6 cases, the initial pathologic diagnosis was gliosarcoma, while in 5 cases, it was glioblastoma, and in the 2nd case, the pathology result was gliosarcoma. Gliosarcomas have a worse prognosis in terms of survival. Clinically, it is not possible to distinguish between glioblastomas and gliosarcomas. Treatment proceeds in the same way. [ABSTRACT FROM AUTHOR]

The cervical segment of an internal carotid artery (cICA) usually has a straight vertical course without any branching. In the present study, variations of the cICA were evaluated based on the three-dimensional volume-rendered neurovascular images. The computed tomography angiography images of 56 patients diagnosed with subarachnoid hemorrhage (SAH) were evaluated retrospectively. Two separate researchers, blinded to each other and clinical information of the patients, evaluated the courses of cICA bilaterally. The variations were classified as tortuosity, kinking, and coiling. A total of 112 cICA segments of 56 patients were evaluated. The cICA variations were present in 21.4% of patients and 17.9% of segments. There was tortuosity in 5 (8.9%) patients, kinking in 4 (7.1%) patients, and coiling in 6 (10.7%) patients. Of 41 patients with aneurysmal SAH, there were a cICA variation in 8 (19.5%) patients. A cICA variation was detected in 4 (26.7%) of 15 patients with idiopathic SAH. The cICA variation ratio in SAH patients was concordant with studies performed in different patient groups. Although the ratio was slightly higher in idiopathic SAH patients, there was no statistical significance between the aneurysmal and idiopathic SAH groups. The coiling was more frequent in SAH patients compared to previous studies. The cICA variations tend to be bilateral in SAH patients. [ABSTRACT FROM AUTHOR]

Without electrocautery, many modern surgical interventions are practically impossible. In neurosurgery, bipolar cautery forceps has been evolved to not only be an auxiliary, but as a principal instrument wielded by the dominant hand of the surgeon to navigate through the most delicate tissue that there is. The purpose of this study is to introduce our original bipolar forceps designed exclusively for microneurosurgical interventions and compare its feasibility with a standard bipolar forceps tip. This study has been conducted on two fresh cadaveric cow brains under the operating microscope. The coagulative and ablative effects of the hemispheric bipolar forceps tip (HBFT) have been histologically compared with those of the standard bipolar forceps tip (SBFT). Likewise, their efficacies as a dissection instruments have been compared via performing dissections from the parietal surface down to the corpus callosum. HBFT proved less traumatic to the uninvolved brain tissue during dissection. Also, histological analyses have revealed that ablative effects of the HBFT are more confined to the bleeding point, more effectively sparing the uninvolved brain tissue. Results of this experimental study suggest that HBFT is a better instrument to be used in microneurosurgical interventions, along with other surgical disciplines where selective diathermy is critical. [ABSTRACT FROM AUTHOR]