• Journal of Chest Surgery
• /
• v.42 no.3
• /
• pp.355-360
• /
• 2009

Background: Benign teratoma is mostly asymptomatic, but this tumor rarely ruptures into the adjacent structure such as the pleural space, pericardium, lung parenchyma or tracheobronchial tree. Thus, it is important to differentiate ruptured teratoma from unruptured teratoma. This study evaluated the difference between ruptured and unruptured benign teratoma. Material and Method: Twenty-four cases of surgically resected benign teratomas were reviewed retrospectively. The clinical symptoms, chest CT findings and operative findings of the ruptured teratoma were compared with those of the unruptured teratoma. Especially, the tumor size, wall thickness, location of the mass, internal septation, homogeneity, calcification and ancillary findings were evaluated on CT. Result: Of the 24 patients, 7 patients were diagnosed with ruptured teratoma. Severe symptoms were more commonly found for ruptured teratoma than for unruptured teratoma. The ruptured teratoma had a tendency to display calcification and such ancillary findings as collapse or consolidation of the lung parenchyma. For the ruptured teratoma, the resection was performed by sternotomy or thoracotomy, and more lung resection was included. Conclusion: Calcification within the mass and changes in the lung parenchyma on the preoperative CT findings can be diagnostic signs of a ruptured teratoma. The demonstration of ruptured teratoma is important not only for making the early diagnosis, but also for the surgical planning.

• Childhood Kidney Diseases
• /
• v.1 no.1
• /
• pp.67-72
• /
• 1997

Purpose : Congenital urinary tract anomaly is the most common anomaly in the childhood and progress to chronic renal failure and growth retardation. Therefore, early diagnosis arid treatment of urinary tract anomaly are important. Method : We reviewed medical records of 124 patients who had urinary tract anomalies on radiologic studies from Jan. 1986 to Dec. 1996. We analyzed demography and clinical characteristics of urinary tract anomalies. Results : 1) The age distributions were as follows ; 61 cases of 124 patients (49%) were under 1 year, 11 cases (8.8%) from 1 to 3 years, 20 cases (16%) from 4 to 6 years, 10 cases (8%) from 7 to 9 years, 9 cases (7.2%) from 10 to 12 years, 10 cases (8%) from 13 to 15 years, and 3 cases (2.4%) from 16 to 18 years. 2) Chief complaints in patients with urinary tract anomalies were fever, flank pain, prenatally diagnosed hydronephrosis, abdominal mass, dysuria and hematuria. 3) Of 124 patients, 68 cases(54.8%) were combined with urinary tract infection, and main causative organism was E.coli, and the most frequently associated anomaly was vesicoureteral reflux. 4) Most of the urinary tract anomalies were VUR, UPJ obstruction, congenital hydronephrosis and double ureter in order of sequence. 5) Whereas the frequency of simple urinary tract anomaly was 87.9%, that of complex anomaly was 12%. 6) Operative corrections were needed in 47 cases and 7 cases were progressed to renal insufficiency. Conclusion : We emphasize that early detection of urinary tract anomaly, appropriate treatment and regular follow-up are needed.

• Proceedings of the Korean Information Science Society Conference
• /
• 1999.10b
• /
• pp.527-529
• /
• 1999

기형부위의 구조적 복잡성으로 인하여 부상이나 질병을 진단하거나 수술계획을 수립하는데 있어 많은 어려움이 있다. 본 논문에서는 네트워크 기반 기형분석 영상처리시스템을 설계하고 구현하였다. 본 시스템은 기형부위를 구성하는 뼈간의 관계를 정의하고 기형 정도를 파악하기 위하여 일련의 2차원 진단 영상들을 공간적으로 구성하고 입체적 영상을 생성한 후, 객체별 모델링 및 렌더링을 가능하게 하며, 이동, 회전, 확대/축소, 컬러링과 같은 다양한 조작 기능을 제공한다. 본 개발 시스템은 클라이언트-서버 구조로 이루어졌으며, 시스템 간 사용되는 메시지 처리를 위한 진단 제어 관리기, 기형부위 영상별 가시화 및 조작을 위한 단면 및 입체 영상처리기, 원격 사용을 위한 통신망 제어기, 그리고 각종 환자 정보를 위한 데이터베이스 관리기로 구성된다. 또한 범용의 데스크탑 컴퓨터 상에서 사용자 인퍼테이스를 통하여 서버에 접속하여 영상처리시스템을 사용함으로서 보다 많은 사용자들이 동시에 사용할 수 있는 이점이 있다.

• Proceedings of the Korean Society of Veterinary Pathology Conference
• /
• 2000.09a
• /
• pp.31-31
• /
• 2000

최근 원전주변지역을 중심으로 한 기형가축이 발생함에 따라 이의 원인을 규명하기 위하여 우선 역학적 조사와 혈청학적 검사 및 기형송아지 , 유산·사산 태아 등의 수집가 검물을 중심으로 하여 병리학적 검사를 실시하였다. 원전주변 기형우 발생농가의 역학적 조사와 모우의 임상적 소견에서는 하동의 이상을 관찰할 수 없었다 . 수집된 가검물 (울진원전주변지역 : 3두, 월성원전주변지역 : 3두, 고리원전주변지역 : 3두, 기타지역 2두) 총 11개 농가 11두에 대한 병리학적 검사와 모우 및 자우의 혈청학적 검사에서 9두가 Akabane 병으로 진단되었고, 나머지 2 두는 곰팡이감염증 1두 그리고 간경화 l 두로 판정되었다. Akabane virus에 감염된 9두는 기형송아지, 유·사산태아로서 사지기형, 척추만곡 및 중추신경계이상(대뇌결손, 뇌수두증)등이 관찰되었다. (중략)

• Journal of Chest Surgery
• /
• v.43 no.4
• /
• pp.450-453
• /
• 2010

CCAM with no other anomalies such as sequestration receives its blood supply from the pulmonary artery. Our case presented with a simple CCAM and no other anomalies but with a feeding artery. Although preoperative evaluation may not show feeding arteries, they may exist in congenital cystic lung diseases.

• Journal of Chest Surgery
• /
• v.32 no.6
• /
• pp.584-587
• /
• 1999

The DiGeorge syndrome is a rare congenital abnormality consisting of aplasia or hypoplasia of the thymus and parathyroid glands resulting from malformation of the third and fourth pharyngeal pouches. This syndrome usually includes congenital cardiac anomalies and abnormal facial features. We experienced a case of congenital cardiac anomaly associated with DiGeorge syndrome. The patient was 1 month old boy weighing 3.5 kg. The congenital cardiac anomalies included ventricular septal defect, atrial septal defect, coactation of aorta, and patent ductus arteriosus. We performed one-stage operation with two separate incisions for these cardiac anomalies. Postoperative course was uneventful and the patient at 6 months of follow up is doing well.

• Journal of the Korean Society of Radiology
• /
• v.83 no.1
• /
• pp.199-205
• /
• 2022

Developmental venous anomalies (DVAs) are common intracranial vascular malformations and they are generally do not cause clinical complications. In cases showing DVA and hemorrhage, the hemorrhage is usually associated with adjacent cavernous malformations. Very few cases of intracerebral hemorrhage (ICH) caused by thrombosis in DVA have been reported in the literature. In this case report, we present an interesting case of a large ICH caused by thrombosis within a DVA with an unusual structure that may have potentiated the thrombosis.

• Journal of the Korean Society of Radiology
• /
• v.82 no.4
• /
• pp.964-970
• /
• 2021

Extrahepatic duct duplication is an extremely rare congenital anomaly. Hilar cholangiocarcinoma with extrahepatic bile duct duplication was reported; however, intraductal papillary neoplasm of the bile duct (IPNB) with extrahepatic bile duct duplication has not been reported to the best of our knowledge. We report a rare case of IPNB with extrahepatic bile duct duplication of a 64-year-old female. The patient underwent extended right hepatectomy, and the results of a subsequence histopathological examination were consistent with an IPNB with extrahepatic bile duct duplication. We report this rare case with radiologic imaging findings and a brief review of the current literature.

• The Journal of the Korean dental association
• /
• v.26 no.12 s.235
• /
• pp.1087-1090
• /
• 1988

악안면 형성과정의 이상으로 인한 구조적 결함상태로 정의되어지는 악안면 기형(maxill-ofacial ogtal malformation)은 사고나 기능적(funct-ional) 장애로 인해 후천적으로 생길 수도 있으나 유전적 원인 등으로 인한 선천적 경우도 많다. 특히 후자의 경우에는 여러 증후군과 결합되어 나타나는 수가 많다. 치과의사는 치아이상이나 기능적 이상으로 인한 기형의 치료 및 예방을 담당할 책임이 있으며, 더욱이 새로운 진료실에서 직접 대면할 수 있는 최초의 의사가 될 수 있다는 점에서 특별한 기형외에도 전반적인 증후군에 대한 지식을 갖는 것이 중요하다. 악안면 기형환자에게는 전반적 검사가 필수적이며 방사선 분석, 치아모형 분석 등 다양한 분석이 필요하나, 여기에서는 주로 병력 청취나 시진을 통한 검사에 중점을 두어 서술하고자 한다.

• Nuclear Medicine and Molecular Imaging
• /
• v.40 no.6
• /
• pp.316-321
• /
• 2006

Purpose: Differential diagnosis between arteriovenous (AVMs) aud non-arteriovenous malformations (nAVMs) is important in patients with congenital vascular malformations, because AVMs can cause hemodynamic alteration and require immediate treatment. We investigated whether transarterial lung perfusion scintigraphy (TLPS) was useful for the diagnosis and post-therapeutic evaluation of AVMs in extremities. Materials and Methods: Fifty-seven patients (M:F=26:31, $21{\pm}13$ yr, 9 upper and 48 lower extremities) suspected of congenital vascular malformations in extremities underwent TLPS using $^{99m}Tc-MAA$ before embolization/sclerotherapy. Dose-corrected shunt fraction (SF) was calculated from time-activity curve of the lung. Final diagnosis of AVMs was determined by angiography. in patients with AVMs, follow-up TLPS was done for post-therapeutic evaluation. Results: Sixteen patients (8 upper and 8 lower extremities) had AVMs, while the remaining 41 had nAVMs (1 upper and 40 lower extremities). The mean SF of AVMs on TLPS was significantly higher than that of nAVMs ($66.4{\pm}25.8%\;vs.\;2.8{\pm}4.3%$), p=0.003). The sensitivity, specificity, and accuracy of TLPS (cut-off of SF = 20.0%) in diagnosis of AVMs before treatment were 93.8% (15/16), 100% (41/41) and 98.2% (56/57), respectively. The follow-up TLPS and angiography for post-therapeutic evaluation showed concordant results in 13 of 16 patients (81.3%) with AVMs. The mean SF of TLPS was significantly decreased after embolization/sclerotherapy ($69.5{\pm}24.0%\;vs.\;41.0{\pm}34.7%$, p=0.01). Conclusion: TLPS provides hemodynamic information of AVMs in extremities semiquantitatively. Furthermore, the results of TLPS showed a high concordance rate with angiographic findings. Therefore, TLPS is useful for the diagnosis and post-therapeutic evaluation of AVMs in extremities.