50 cases were diagnosed with posterior fossa & pineal region tumour during the study period. Cranial image guided score (IGS) was calculated by the summation of grading during designing the flap/burr hole, delineation of the intraoperative anatomy, navigation and access to the lesion and resection of the lesion or completion of the procedure. The scoring ranged from 0-12 and the utility of IGS in cranial neurosurgical procedures was calculated based on the total points for each surgery. At the time of discharge/1 month/3 months/6 months/12 month's outcome was assessed according to Glasgow outcome scale. One month after surgery, according to Karnofsky, the patient's condition was divided into good and poor. Results: Biopsy, subtotal resection and gross total resection was achieved in 11 (22%), 15 (30%) and 24 (48%) subjects respectively. According to cranial IGS score, neuronavigation was more useful than conventional methods and irreplaceable among 52% and 26% of the subjects respectively. Only in two cases, it was not helpful.
Conclusion:This study proved that the employed neuronavigation system is versatile and safe and that there are no adverse effects, complications or surgical mortality due to the device.
Chordoid glioma is an uncommon low‐grade glioma and is a CNS WHO grade 2 tumour in the current WHO 2021 classification. Predominantly it is seen in the third ventricle and in young adults. Although the histological features of chordoid glioma are well documented, there is sparse literature describing its cytological features. Here we describe the squash cytological features of a case of chordoid glioma along with summary of prior published cases. The smears tend to be quite cellular, the cells show mild pleomorphism, anisonucleosis, and absent mitotic activity. The background shows a distinctive bluish myxoid stroma. It can be mistaken for high grade glioma on squash cytology.
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