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A Case of Metastatic Eccrine Porocarcinoma with a Review of the Literatures
이정환,임주한,김루시아,김철수,이현규,나소연,김성현,정지중,이명동,예재호,이문희,Lee, Jung-Hwan,Lim, Joo-Han,Kim, Lucia,Kim, Chu-Soo,Yi, Hyeon-Gyu,Nah, So-Yun,Kim, Seong-Hyun,Jeong, Ji-Joong,Lee, Myung-Dong,Ye, Jea-Ho,Lee, Moon-Hee The Korean Society for Head and Neck Oncology 2011 대한두경부 종양학회지 Vol.27 No.2
에크린 한공암종은 흔하지 않으며, 전이성 에크린 한공암종은 매우 드문 암이다. 에크린 한공암종은 표피내 한관에서 기원하는 피부 부속기 악성 종양으로, 대부분 에크린 한공암종은 항암치료와 방사선치료에 효과가 없으며, 따라서 유일한 치료방법은 전이되기 전에 국소 및 광범위 절제술을 시행하여야 한다. 본 환자는 두피에 발생한 에크린 한공암종이 점점 진행하여 피부, 림프절, 폐 등으로 전이하였고, 다수의 광범위 절제술에 이어 항암치료와 방사선치료를 받았지만, 결국 폐전이가 악화되어 사망하였다. 본 저자들은 항암치료와 방사선치료에 불응한 에크린 한공암종 1예를 치료에 대한 문헌고찰과 더불어 보고하는 바이다.
Al 7050 단조품 표면의 입도성장층 방지에 관한 연구
이정환,이상용,이영선,Lee, Jeong-Hwan,Lee, Sang-Yong,Lee, Yeong-Seon 한국기계연구원 1996 硏究論文集 Vol.26 No.-
Age hardenable aluminium alloys show high specific strength, good thermal and electrical conductivity as well as lightness, and are typical aircraft materials. High fatigue strength and good resistancy against stress corrosion cracking are also important for aircraft aluminium alloys. Al alloy 7050 has been developed to meet the above mentioned requirements and the use of this alloy as forged aircraft part becomes more important. However, forged 7050 parts showed undersiable structures such as severe local grain coarsening in surface area and unproper metal flow that is degrading mechanical properties. In this paper, microstructural aspects of die forging in the Al alloy 7050 are investigated. Also suggested are the optimal forging conditions for microstructural control of Al alloy 7050.
이정환,김오룡,김성호,배장호,최병연,조수호,Lee, Jeong-Hwan,Kim, Oh-Lyong,Kim, Seong-Ho,Bae, Jang-Ho,Choi, Byung-Yon,Cho, Soo-Ho 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.2
Objective : The present study was performed to analyze treatment results for 22 cases of arachnoid cyst and to have appropriate surgical method in our department. Material and Methods : We performed a retrospective study in 22 cases in 11 years between 1989 to 2000 that could be followed up. The analysis was based on the results of patients age, sex distribution, developed area, clinical symptom, treatment method, and complication. Results : The age range of cyst development was between 7 months to 60 years with the average age of 21 years. As for sex distribution, 20 were male and 2 were female, with significantly more cyst development in males than females. Thirteen cases were developed in the sylvian fissure, 3 cases in the posterior fossa, 4 cases in the cerebral convexity of the supratentorial area, 1 case in the suprasella and 1 case in interhemiphere. Those cases with the sylvian fissure involvement included 6 cases of Type I, 4 cases of Type II, and 3 cases of Type III. As for the distribution according to hemisphere, more arachnoidal cysts were seen in the right hemisphere. The most common clinical symptom was headache, followed by seizure and speech disturbance. As for the treatment method in 22 cases, surgery was performed in 17 cases and conservative treatment in 5 cases. Fenestration was performed in 14 cases. 13 cases of them showed good outcome, and 1 case with delayed development showed no improvement. Cyst-peritoneal shunt was done in 2 cases. Both fenestration and cyst-peritoneal shunt were done in 1 case. Conclusion : Patients who perforemed fenestration were showed good outcome with few complication. We concluded that fenestration is the most appropriate surgical method for arachnoid cyst.
이정환,고민경,윤광식,이창우,김영일,김정호,Lee, Jeong-Hwan,Ko, Min-Kyung,Yoon, Kwang-Shik,Lee, Chang-Woo,Kim, Young-Il,Kim, Jung-Ho 대한약침학회 2011 Journal of pharmacopuncture Vol.14 No.4
Objectives: There is no report on treatment of acute traumatic rotator cuff tear in Traditional Korean Medicine. We reported Traditional Korean Treatment for pain relief and better movement of acute traumatic rotator cuff tear. Methods: Shoulder MRI was used to confirm the diagnosis of tear of rotator cuff. The patient was treated with Traditional Korean Methods (Acupuncture, Herbal medicine, Pharmacopuncture) for 6 months. We evaluated the patient through VAS (Visual Analogue Scale), UCLA shoulder scale, ROM (Range of motion) and Shoulder MRI. Results: After 6 months of treatment, the patient's VAS was decreased whereas UCLA score and Shoulder ROM were increased. Rotator cuff tear was repaired on Shoulder MRI images. Conclusions: In acute traumatic rotator cuff tear, Korean Traditional Treatment is good method for pain relief and better movement.