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최시홍,이동후,정수진,김도훈 대한이비인후과학회 부산,울산,경남 지부회 2018 임상이비인후과 Vol.29 No.2
Columnar cell variant of papillary thyroid carcinoma (CCV-PTC) is a rare variant representing 0.15-0.2% of all PTCs. The CCV is aggressive, due to its rapid growth, high local recurrence rate, and frequent lung, brain and bone metastasis. Aggressive surgical and medical management are recommended for these neoplasias. The authors experienced a case of CCV-PTC in a 45-year-old man. We performed total thyroidectomy with neck dissection. The patient received radiation and radioactive iodine therapy. There were no recurrences or complications in the following 24 months after the operation. The patient will closely undergo continuous follow up. We present the clinical characteristics, pathology, treatment, and prognosis of the tumor with a review of the literature.
최시홍,이동후,강미선,허경욱 대한이비인후과학회 2019 대한이비인후과학회지 두경부외과학 Vol.62 No.5
Both neoplasm and infections arising from the external auditory canal (EAC) can involve thetemporomandibular joint (TMJ) but rarely the reverse. A benign TMJ mass that presents as anEAC mass is a rare otologic entity as only seven cases have been reported worldwide. The authorsexperienced a 72-year-old male patient presenting with EAC mass with fluctuation whenopening the mouth, which turned out to be caused by venous malformation of the TMJ. Surgicalexcision of the mass via endaural approach was successful. We present this case with a reviewof the literature.
최시홍,Choi, SiHong 한국군사과학기술학회 2014 한국군사과학기술학회지 Vol.17 No.4
In this paper, This study shows the content on the impact fuze test and the measurement using underwater explosion phenomena. The impact fuze has both a delay function and a super quick. Up to now, nothing but the naked eye of the observer has been used to verify performance of the impact fuze. The observer has determined the performance by the shape of the plume created from the explosion phenomenon. However, it is extremely difficult to use that method at a long range. In order to solve the problem, the measurement using the underwater explosion phenomena was tried.
Polymorphous Low-Grade Adenocarcinoma in the Nasopharynx: A Case Report and Review of the Literature
홍태의,박성국,김도훈,최시홍 대한이비인후과학회 2021 대한이비인후과학회지 두경부외과학 Vol.64 No.2
Polymorphous low-grade adenocarcinoma (PLGA) is a neoplasm that usually occurs in theminor salivary glands located in the mucosa of the soft and hard palates, the buccal mucosa,and the upper lip. It rarely occurs in the nasopharynx, and only six cases have been reported. PLGA can be treated by wide local excision and requires no additional treatment if a negativemargin is identified in frozen biopsy. Here we describe a case of PLGA originating in the nasopharyngealmucosa. We were able to completely resect the tumor using simple endoscopicsurgery rather than using an open approach, such as a transpalatal resection. Our patient hadno local recurrence or distant metastasis at the 24-month follow-up.
찬물에 노출된 과거력이 없는 환자에서 발생한 양측 외이도 외골종 1례
이동후(Donghoo Lee),최시홍(Si Hong Choe),박성율(Sung Yool Park),허경욱(Kyung Wook Heo) 대한두개저학회 2019 대한두개저학회지 Vol.14 No.1
Exostosis of external auditory canal (EAC) is broad-based lamellated bony outgrowth, which is typically common in individuals who frequently participate in aquatic activities. It forms most commonly as a reaction to cold water exposure in surfers. Also, it also occurs in other aquatic sport players such as swimmers, divers, and kayakers. Not to be confused with external auditory canal osteomas, this disorder is more commonly bilateral and manifests as multiple formation. However, without those specific past history of cold water exposure, idiopathic EAC exostosis have seldom been reported. In this case report, we present a 50-year-old male without history of cold water exposure complaining bilateral ear fullness and progressive left hearing loss. The diagnosis was bilateral exostosis of EAC by physical examination, computed tomography, and audiometries. Under general anesthesia, canaloplasty and type I tympanoplasty via retroauricular approach was done to the left ear due to preoperative conductive hearing loss. There was no recurrence or complications during the following 12 months postoperatively. We report this case with a review of literature.