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이명희,이승노,문승영,임상호,조영주,홍기환,Lee, Myeong-Hee,Lee, Seung-Rho,Moon, Seung-Young,Lim, Sang-Ho,Cho, Young-Joo,Hong, Ki-Hwan 대한후두음성언어의학회 2008 대한후두음성언어의학회지 Vol.19 No.2
Background and Objectives: Smoking has been identified as one of the main determinants of negative changes on the larynx histology. The purpose of this study is to investigate the voice characteristics and correlation between voice parameters of the smokers with vocal polyp or nodule or both of them. Materials and Method: MPT, $F_0$, jitter, shimmer, NHR of Korean /a/ vowel from 54 smokers and 50 nonsmokers diagnosed as vocal polyp or nodule were analyzed. A Computerized Speech Lab (4400) was for the analysis of each voice sample and statistical analysis was done by one-way ANOVA and Pearson correlation coefficient. Result and Conclusion: It showed that we can find difference between smokers and nonsmokers group in MPT, $F_0$, jitter, shimmer were different except NHR. each group shows difference in correlation coefficient between MPT, $F_0$, jitter, shimmer.
홍기환(Ki-Hwan Hong),문승영(Seung Young Moon),임상호(Sang Ho Yim),최동일(Dong-Il Choi) 대한두경부종양학회 2009 대한두경부 종양학회지 Vol.25 No.2
Parathyroid cyst are rare lesion of the neck and superior mediastinum. They are classified as either function-al or nonfunctional based on the presence or absence of hyperparathyroidism. They typically present as a palpa-ble neck mass, or as an incidental finding during neck surgery. So, it must be included within the differential diagno-sis of a neck lump. A 48-year old woman was admitted to our hospital for evaluation of left anterior neck mass. Phys-ical finding showed soft, movable, non-tender mass on the lower left third of the neck. Laboratory findings reveal-ed normal thyroid function and normal serum calcium level. On previous history, patient underwent two times sono-guided fine needle aspiration at local clinic, and about 10cc clear watery aspirate was noted. Computerized to-mography findings showed non-enhancing hypodense cystic lesion on left thyroid area with tracheal deviation to right side. Preoperative diagnosis was thyroid cyst, and thyroidectomy was planed. Intra-operative finding sho-wed huge cystic mass occupying the left thyroid area and smooth, shiny, semitransparent thin cyst wall was noted, which was loosely attached to the thyroid. The cyst was easily dissected free from the thyroid and surrounding tissues. After cyst removal, pathological study confirmed as a parathyroid cyst.
홍기환(Ki Hwan Hong),김인(In Kim),문승영(Seung Young Moon) 대한두경부종양학회 1999 대한두경부 종양학회지 Vol.15 No.2
We analyzed retrospectively the 74 patients with salivary tumors who were treated surgically at Chonbuk National University Hospital. The following results were obtained: 1) The most prevalent site was parotid gland and minor salivary gland is second in order. The most prevalent site of minor salivary gland tumor was palate. 2) Slow-growing painless mass was the most common chief complaints. 3) The most frequnet age incidence was 4th and 6th decades. 4) Sex ratio of male to female was 1:1.1, but in minor salivary gland tumor, female was more prevalent and sex ratio of male to female was 1:1.5. 5) Histopathologically, the most common salivary gland tumor was pleomorphic adenoma. Among the benign tumors, the pleomorphic adenoma was most common and Warthin's tumor was next. Among the malignant tumors, the mucoepidermoid carcinoma was most common and adenoid cystic carcinoma, adenocarcinoma were the next. 6) 59 patients with benign tumor and 15 patients with malignant tumor were treated with operative therapy. Among patients with malignant tumor, 12 patients were treated with postoperative radiation therapy. 7) Overall incidence of postoperative complication was 14.9% and the most common complication was transient facial nerve weakness and hematoma.