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Malignant Schwannoma of the Esophagus: A Rare Case Report
Biswajit Mishra, M.D.,Kumble Seetharama Madhusudhan, M.D., FRCR,Ragini Kilambi, M.Ch.,Prasenjit Das, M.D.,Sujoy Pal, M.Ch.,Deep Narayan Srivastava, M.D. 대한흉부외과학회 2016 Journal of Chest Surgery (J Chest Surg) Vol.49 No.1
Neurogenic tumors are the most prevalent tumors of the mediastinum, and schwannomas are the most common type of neurogenic tumor. Primary neurogenic neoplasm of the esophagus is uncommon and malignant schwannoma of the esophagus is extremely rare. We report a case of a 27-year-old female presenting with dysphagia and palpitations who was found to have a lobulated tumor in the mediastinum that was compressing the esophageal lumen. The tumor was successfully treated surgically without recurrence. The final diagnosis, on histopathological examination of the specimen, was malignant schwannoma.
Inner-Gate-Engineered GAA MOSFET to Enhance the Electrostatic Integrity
Biswajit Jena,Sidhartha Dash,Soumya Ranjan Routray,Guru Prasad Mishra 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2019 NANO Vol.14 No.10
Gate-all-around (GAA) MOSFETs are the best multi-gate MOSFET structure due to their strong electrostatic control over the channel. The electrostatic controllability can be enhanced further by applying some gate engineering technique to the existing GAA structure. This paper investigates the effect of inner gate (core gate) on the electrostatic performance of conventional GAA MOSFET. The inner gate engineering increases both the electrostatic control and packing density of GAA MOSFET. In this paper, we have presented an inner-gate-engineered (IGE) GAA MOSFET and inspected its advantages over conventional counterparts. The proposed structure exhibits higher I on/I off ratio, low threshold voltage and improved RF performances as compared to the conventional structure. Analytic simulation has been carried out for numerous figures of merit (FOMs) for different technology nodes.
Schwannoma of the uterine cervix: a rare case report
Biswajit Dey,Sairem Mangolnganbi Chanu,Jaya Mishra,Evarisalin Marbaniang,Vandana Raphael 대한산부인과학회 2019 Obstetrics & Gynecology Science Vol.62 No.2
Schwannomas are neurogenic tumors, which are among the most varied tumors with respect to morphology, clinicalassociations, and presentations; they occur in a wide variety of sites. The uterine cervix is a rare site of occurrence andonly 15 cases of schwannomas of the uterine cervix, including 5 benign and 10 malignant cases, have been reportedto date. Thus, schwannomas of the uterine cervix may pose diagnostic difficulty. Here, we report a case of benignschwannoma of the uterine cervix in a 37-year-old female, who presented with vaginal spotting.