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Sodium Hyaluronate가 가토 결막상피에 미치는 형태학적 연구
유석찬,고명규,최준규 한양대학교 의과대학 1991 한양의대 학술지 Vol.11 No.1
This study was carried out whether sodium hyaluronate may affect the mucous layer of the tear film and surface layer of the conjunctival epithelium by histochemical electron microscopy. Sodium hyaluronate was injected into the subconjunctival tissue of five rabbits twice a week for 10 weeks. The excised specimen was treated with ruthenium red to enhance the presence of glycosaminoglycans of the surface layer of the conjunctiva. From the histochemical electron microscopic point of view, sodium hyaluronate did not improve the content of glycosaminoglycans density in the tear film over the surface of the conjunctival dpithelium. In addition, there was no evidence of epithelial lesions such as desquamation or stratification. However, the mucus layer was intermingled with secretory granules of goblet cell with the mucus layer spread over glycocalyx. The results of this study indicate that sodium hyaluronate injected into the subconjunctigval layer has little effect on the glycosaminoglycans density over the conjunctival epithelium in rabbit.
신경성 종양으로 오인된 경부에 발생한 다형성 유리질 혈관확장성 종양 1례
유석찬(Seok Chan Yoo),여창기(Chang Ki Yeo),신형찬(Hyeong Chan Shin) 대한두경부종양학회 2020 대한두경부 종양학회지 Vol.36 No.2
Pleomorphic hyalinizing angiectatic tumor (PHAT) is a rare, low grade neoplasm which usually occurs in subcutaneous soft tissue. Histologically, it features ectatic blood filled vessels surrounded by hyalinized stroma and pleomorphic spindle cells. Clinically and histologically, PHAT could be misdiagnosed as such tumor as neurogenic tumor, malignant fibrous histiocytoma. About 100 cases of PHAT have been reported so far, and it is even rarer in head and neck area. We experienced a case of PHAT in 41-year-old male with several months of history of gradually enlarging neck mass which was surgically removed by wide excision.
Onodi Cell에 발생한 침습형 진균성 부비동염에 의한 시력 저하 1예
김태우,유석찬,이석윤,정종인 대한이비인후과학회 2021 대한이비인후과학회지 두경부외과학 Vol.64 No.4
Invasive fungal sinusitis is common in immunodeficiency patients and can spread into the orbitor intracranial cavity. The Onodi cell, which is one of the anatomical variations of the ethmoidsinus, refers to the space that has been pneumatized superolateral to the sphenoid sinus. We experienced a case of invasive fungal sinusitis that caused vision loss by invading the Onodicells. Endoscopic sinus surgery and antifungal treatment successfully recovered the patient’svision and we herein report on the case with a review of the literature.
이석윤,유석찬,정혜라,정종인 대한이비인후과학회 2023 대한이비인후과학회지 두경부외과학 Vol.66 No.2
Epiphora is a symptom in which tears overflow onto the face, with its most common cause be-ing the obstruction of the nasolacrimal system. As a cause of nasolacrimal system obstruction,nasolacrimal duct tumors are very rare. Angioleiomyoma, which is a benign tumor, arisesfrom vascular smooth muscle, occurs in the nasolacrimal duct, and is extremely rare. With thedevelopment of endoscopic intranasal approach for the treatment of nasolacrimal duct ob-struction, there is increased importance for the consideration of otorhinolaryngological evalu-ation and treatment as well as dacryocystorhinostomy by conventional external approach. Inthis article, we introduce a case in which angioleiomyoma in the nasolacrimal duct was de-tected by nasal endoscopy and was successfully treated with endoscopic surgery.