• 한국임상수의학회지
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• 제22권4호
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• pp.401-403
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• 2005

동물원에서 사육 중이던 7세령 암컷 일본원숭이가 짝짓기 과정에서 피부에 외상을 입은 후 치료 도중 폐사하였다. 부검시 간에서 $1.3\times1.2\times1.0cm$ 크기를 비롯한 다양한 크기의 다발성 낭포가 관찰되었으며 낭포내에 점액성 액체가 저류되어 있었다. 현미경 소견상 낭포는 담관 상피세포로 덮혀 있었고 입방상피에서 원주상피까지 다양하였으며 대부분 단층이었으나 일부는 여러층으로 덮혀 있었다. 악성도나 다른 장기로의 전이 소견은 찾을 수 없었다. 본 증례는 일본 원숭이에서 발견된 첫 번째 담관 낭샘종 증례이다.

• Asian Pacific Journal of Cancer Prevention
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• 제15권14호
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• pp.5811-5814
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• 2014

Background: To investigate abnormal cervical histopathology (ACH) from hysterectomy specimens with normal preoperative Papanicolaou (Pap) smears. Materials and Methods: Medical records from May 2009 to April 2012 were retrospectively reviewed of subjects from whom hysterectomy specimens were taken in Thammasat University Hospital. All had normal preoperative Pap smears. ACH was the primary outcome. A p-value less than 0.05 was considered significant. A total of 483 subjects with an average age of 50.5 years were recruited. Benign cases of enlarged uterus and pelvic mass were present in 94% (430/483). Endometrial and ovarian cancer were found at 6.2 and 4.7%, respectively. In hysterectomy specimens there were 19 (4%) cases of ACH. Silent ACH with benign disease, endometrial and ovarian cancers were 1.2% (5/430), 33.3% (10/30) and 17.4% (4/23), respectively. The negative predictive value (NPV) and false negative rate of Pap smears were 96 and 4%, respectively. ACH in malignant cases were 27.9% (12/43) and 20% (2/10) in adequate (APS) and inadequate (IPS) Pap collection groups, respectively. ACH in benign condition were 0.68% (2/292) and 2.2% (3/138) in APS and IPS, respectively. ACH was more often found in hysterectomy specimens with indication of malignancy than benign conditions with statistical significance. One third of preoperative stage I endometrial cancer cases had cervical involvement. Conclusions: Silent ACH in normal preoperative Pap smear was 4 %. Inadequate Pap smear collection is still the major problem in this study. Reducing inadequate Pap smear collection could reduce the false negative rate.

• 한국통신학회논문지
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• 제33권11B호
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• pp.1013-1019
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• 2008

최근 들어 인터넷이 급격히 발전하면서 다양한 정보와 자료들이 실생활에 유용하게 쓰이고 있다. 그러나, 정보의 양이 급증하면서 사용자들이 필요로 하는 정보를 찾는데 걸리는 시간 또한 만만치 않게 소비되고 있다. 이를 해결하기 위해 지능형 검색 엔진, 에이전트 시스템 등의 개발로 정보 검색의 신속성과 정착성을 제공하게 되었다. 본 논문에서는 사용자들의 만족을 극대화하기 위한 목적으로 전문성을 필요로 하는 건설 입찰 정보의 분석을 통해 최상의 투찰가를 얻어내는 방법을 제시하고자 한다. 물론 미래에 대한 결과는 모두 일치시킬 수 없는 가정하에서 최상의 낙찰 성공률을 높이기 위한 부분에 논문의 목표를 두었다. 따라서, 본 논문에서는 사용자들에게 보다 신뢰성 있는 투찰가를 제공하기 위해 낙찰자료를 빈도분석 방법으로 접근하여 통계분석 결과 값으로 입찰자료와 비교, 분석하여 낙찰에 대한 투찰가를 산출하는 기법을 제시하고 이를 통해 최적의 투찰가 산출하는 웹 기반의 시스템을 구현하고자 한다.

• Journal of Chest Surgery
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• 제39권2호
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• pp.162-165
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• 2006

무명동맥에 단독으로 발생하는 동맥류는 드문 질환으로 외상, 감염 또는 동맥경화증에 의해 발생하는 것으로 알려져 있다. 증례는 36세 남자 환자로 16년 전 교통사고의 병력 이외에는 특이한 과거력이 없었으며 신체검사에서 우연히 우상종격동 종양이 발견되어 본원으로 전원되었다. 컴퓨터단층촬영에서 흉골과 경계가 불분명한 5 cm크기의 진성 무명동맥류를 볼 수 있었으며 동맥류의 내부에는 혈전이 관찰되었다 수술은 중등도 이상의 저체온법을 이용하여 체외순환 하에서 Dacron Y-이식편을 사용하여 상행대동맥과 우측 경동맥 및 쇄골하동맥 사이에 우회도관을 연결하였으며 동맥류는 절제하였다. 환자는 수술 후 특별한 합병증 없이 회복되어 퇴원하였고 현재 추적 관찰 중이다.

• Imaging Science in Dentistry
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• 제43권1호
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• pp.25-30
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• 2013

Purpose: This study was performed to determine the prevalence of bifid mandibular condyles (BMCs) in asymptomatic and symptomatic temporomandibular joint (TMJ) subjects with no traumatic history, and to assess their impact on clinical and radiographic manifestations of TMJ. Materials and Methods: A total of 3,046 asymptomatic and 4,378 symptomatic patients were included in the study. Cone-beam computed tomography (CBCT) images were reviewed for bifid condyles. T-tests were used to compare the frequency of BMCs when stratified by symptom, gender, and side. In BMC patients, the clinical features of pain and noise, osseous changes, and parasagittal positioning of the condyles were compared between the normally shaped condyle side and the BMC side using chi-squared tests. Results: Fifteen (0.49%) asymptomatic and 22 (0.50%) symptomatic patients were found to have BMCs. Among the bilateral cases, the number of condyles were 19 (0.31%) and 25 (0.29%), respectively. No statistically significant differences were found between asymptomatic and symptomatic patients, between female and male patients, or between the right and left sides (p>0.05). Compared with the normally shaped condyle side, the BMC side showed no statistically significant differences in the distribution of pain and noise, parasagittal condylar position, or condylar osseous changes, with the exception of osteophytes. In the symptomatic group, osteophytes were found more frequently on the normally shaped condyle side than the BMC side (p<0.05). Conclusion: BMCs tended to be identified as an incidental finding. The presence of BMC would not lead to any TMJ symptoms or cause osseous changes.

• Imaging Science in Dentistry
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• 제47권3호
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• pp.175-180
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• 2017

Purpose: Pineal gland calcification has been proposed to play a role in the pathogenesis of Alzheimer disease. This study evaluated the prevalence and extent of pineal gland calcification in cone-beam computed tomography (CBCT) scans of patients referred for dental implant therapy who could possibly be a vulnerable group for this condition. Materials and Methods: A retrospective evaluation of 500 CBCT scans was conducted. Scans that showed the area where the pineal gland was located were included. The scans were initially screened by a single observer to record the prevalence and extent of calcification. Six weeks following the completion of the study, another investigator randomly reviewed and selected 50 scans to investigate inter-observer variation, which was evaluated using reliability analysis statistics. The prevalence and measurements of the calcifications were reported using descriptive statistics. The chi-square test was used to compare the prevalence between males and females. Results: The prevalence of pineal gland calcification was 58.8%. There was no statistically significant correlation between age and the extent of the calcification. The prevalence of calcification was 58.6% in females and 59.0% in males. The average anteroposterior measurement was $3.73{\pm}1.63mm$, while the average mediolateral measurement was $3.47{\pm}1.31mm$. The average total calcified area was $9.79{\pm}7.59mm^2$. Conclusion: The prevalence of pineal gland calcification was high in patients undergoing implant therapy. While not all pineal gland calcifications lead to neurodegenerative disorders, they should be strongly considered in the presence of any symptoms as a reason to initiate further investigations.

• Journal of Chest Surgery
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• 제42권6호
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• pp.774-776
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• 2009

57세 남자가, NYHA class III의 호흡곤란을 주소로 내원하여 시행한 심장초음파 검사상 Grade III에 해당하는 대동맥판막 역류증을 진단받았다. 그는 수술 전 시행한 심혈관조영술 검사상 단일관상동맥 기형을 가지고 있었으며, 기계판막을 이용한 대동맥판막 치환술을 시행받았다. 수술장 소견상 단일관상동맥이었으며 대동맥절개시술부위의 좌측절개부위와 우관상동맥의 주행이 인접한 해부학적 구조를 보였다. 판막치환술을 시행하고 절개된 대동맥을 봉합한 후 인공심폐기로부터 탈출하던 도중 좌측대동맥절개부위와 인접한 우관상동맥이 당겨지면서 심실세동이 발생하여 대동맥을 다시 절개하였으며, 우관상동맥을 박리하고 대동맥을 재봉합하여 문제 없이 수술이 종료되었다. 수술 직후 방실리듬이 관찰되어 심방조율하여 정상동방결절리듬으로 전환되었고, 술 후 8일 째 특이 문제없이 퇴원하였다.

• Journal of Korean Neurosurgical Society
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• 제56권3호
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• pp.237-242
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• 2014

Objective : The purpose of this study was to investigate the clinical features and outcomes of pediatric cavernous malformation (CM) in the central nervous system. Methods : Twenty-nine pediatric patients with supratentorial CM underwent microsurgical excision. In selected cases, transparent tubular retractor system (TTRS) was used to reduce retraction injury and intraoperative neuromonitoring (IONM) was held to preserve functioning cortex. Patients' demographics and symptoms were reviewed and surgical outcomes were discussed. Results : The main initial clinical manifestations included the following : seizures (n=13, 45%), headache (n=7, 24%), focal neurological deficits (n=3, 10%), and an incidental finding (n=6, 21%). Overt hemorrhage was detected in 7 patients (24%). There were 19 children (66%) with a single CM and 10 (34%) children with multiple CMs. In 7 cases with deep-seated CM, we used a TTRS to minimize retraction. In 9 cases which location of CM was at eloquent area, IONM was taken during surgery. There was no major morbidity or mortality after surgery. In the 29 operated children, the overall long-term results were satisfactory : 25 (86%) patients had no signs or symptoms associated with CMs, 3 had controllable seizures, and 1 had mild weakness. Conclusion : With the assistance of neuronavigation systems, intraoperative neuromonitoring, and TTRS, CMs could be targeted more accurately and excised more safely. Based on the satisfactory seizure outcome achieved, complete microsurgical excision in children is recommended for CMs presenting with seizures but removal of hemosiderin-stained areas seems to be unnecessary.

• Journal of Yeungnam Medical Science
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• 제31권2호
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• pp.131-134
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• 2014

Familial isolated primary hyperparathyroidism(FIPH) is associated with multiple endocrine neoplasia type 1 (MEN1) syndrome, primary hyperparathyroidism accompanied by jaw-tumor syndrome, and familial hypocalciuric hypercalcemia. FIPH may be an early stage of MEN1 or an allelic variant of MEN1. Thymic carcinoid tumor is a rare tumor in MEN1 syndrome. Here, the authors report the case of a 40-year-old man diagnosed with recurrent thymic carcinoid tumor and FIPH. Both the patient and his elder sister had been previously diagnosed to have FIPH with a novel frameshift mutation in the MEN1 gene. Initially, the patient underwent thymectomy because of an incidental finding of a mediastinal mass in his chest X-ray, and had remained asymptomatic over the following 4 years. Pancreas computed tomography conducted to evaluate MEN1 syndrome revealed anterior and middle mediastinal masses, and resultantly, massive mass excision was performed. Histological findings disclosed atypical carcinoids with infiltrative margins. In view of the thymic carcinoid tumor relapse that occurred in this patient, the authors recommend that regular pancreas and pituitary imaging studies be conducted for FIPH associated with a MEN1 gene mutation.

• Clinics in Shoulder and Elbow
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• 제26권3호
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• pp.260-266
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• 2023

Background: Knowledge of the base rate of signal changes consistent with distal biceps tendinopathy on magnetic resonance imaging (MRI) has the potential to influence strategies for diagnosis and treatment of people that present with elbow pain. The aim of this study is to measure the prevalence of distal biceps tendon signal changes on MRIs of the elbow by indication for imaging. Methods: MRI data for 1,306 elbows were retrospectively reviewed for mention of signal change in distal biceps tendon. The reports were sorted by indication. Results: Signal changes consistent with distal biceps tendinopathy were noted in 197 of 1,306 (15%) patients, including 34% of patients with biceps pain, 14% of patients with unspecified pain, and 8% of patients with a specific non-biceps indication. Distal biceps tendon changes noted on radiology reports were associated with older age, male sex, and radiologists with musculoskeletal fellowship training. Conclusions: The finding that distal biceps MRI signal changes consistent with tendinopathy are common even in asymptomatic elbows reduces the probability that symptoms correlate with pathology on imaging. The accumulation of signal changes with age, also independent of symptoms, suggests that tendon pathology persists after symptoms resolve, that some degree of distal biceps tendinopathy is common in a human lifetime, and that tendinopathy may often be accommodated without seeking care. Level of evidence: IV.