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임계연 대한영상의학회 1995 대한영상의학회지 Vol.33 No.3
점액 과분비성 담도종양은 종양자체보다는 종양에서 분비되는 과다한 양의 점액에 의해 특징적인 방사선학적 소견을 보이는 드문 종양이다. 이에 저자들은 최근 병리조직학적 으로 확진된 점액 가분비성 담도종양 2예의 특징적인 방사선학적 소견을 보고하고자 한다. Mucin-hypersecreting biliary neoplasm excretes excessive mucin that fills the biliary tree and results inmarked dilatation of the bile ducts and obstructive jaundice. In these neoplasm, the mucin produced by the tumorrather than the tumor itself plays an important role in clinical course and radiologic patterns. The purpose ofthis paper is to report characteristic radiologic patterns of mucin-hypersecreting biliary neoplasms in two cases.These neoplasms were characterized by not only multilocular cystic hepatic mass or extra-hepatic bile duct massresulting in marked biliary dilatation distal to the mass on US or CT, but also change of shape and extent ofamorphous filling defects in the markedly dilated bile duct on serial cholangiograms.
거대 위낭포(pseudocyst)로 나타난 태변성 복막염
임계연 대한영상의학회 1990 대한영상의학회지 Vol.26 No.5
A case of meconium peritonitis complicating jejunal atresia and perforation of the ileum manifested as giant meconium pseudocyst is reported. Roentgenographic and sonographic findings are discussed with a brief review of the literature.
Kikuchi’s Disease in Children: Clinical Manifestations and Imaging Features
한혜정,임계연,여동명,정낙균 대한의학회 2009 Journal of Korean medical science Vol.24 No.6
Previously published studies on Kikuchi disease (KD) have frequently addressed the computed tomography (CT) findings in the adult population, however, only a few studies have been reported for the pediatric age group. The purpose of this study is to analyze the clinical characteristics and imaging features of KD in children. Fifteen children (2-14 yr) who had a neck CT and pathology diagnosis of KD were included in this study. Clinical features, including the duration of lymphadenopathy and fever, prognosis, and laboratory values, were evaluated. We analyzed the sites, size, and lymph node pattern as seen on their CT scans. The median duration of fever was 10 days. Fourteen patients experienced improvement in their condition, although four of these patients experienced recurrent episodes of KD. All patients had affected cervical nodes at level V. Perinodal infiltrates were observed in the affected cervical nodes in 14 cases (93%), and non-enhancing necrosis was also noted within the affected cervical nodes in 10 cases (63%). In conclusion, the combination of imaging findings in conjunction with clinical findings of KD may help to determine whether or not to perform pathology analysis and follow-up studies.
임수아,임계연 대한영상의학회 2005 대한영상의학회지 Vol.52 No.1
Subcapsular hematoma of the liver in the neonate is an uncommon clinical presentation, although these tumors are frequently found upon perinatal autopsy. We describe the sonographic and MR findings of a subcapsular hematoma of the liver in a neonate having a clinical history of an inserted umbilical venous catheter, necrotizing enterocolitis and sepsis, and we also include a review of the relevant literature. 신생아에서 생기는 피막하 간혈종은 신생아 부검시에는 비교적 흔히 볼 수 있는 소견이나 임상적으로 흔한 질환은 아니다. 저자들은 제대정맥관 삽관 기왕력이 있고 괴사성 장염과 패혈증 소견으로 치료를 받고 있던 환아에서 발생한 피막하 간혈종을 초음파와 자기공명영상 검사로 진단하였기에 문헌고찰과 함께 보고하는 바이다.
Gastrointestinal Complications Following Hematopoietic Stem Cell Transplantation in Children
이지혜,임계연,임수아,정낙균,한성태 대한영상의학회 2008 Korean Journal of Radiology Vol.9 No.5
Gastrointestinal system involvement is one of the principal complications seen in the recipients of hematopoietic stem cell transplantation (HSCT), and it is also a major cause of morbidity and death in these patients. The major gastrointestinal complications include typhlitis (neutropenic enterocolitis), pseudomembranous enterocolitis, viral enteritis, graft-versus-host disease, benign pneumatosis intestinalis, intestinal thrombotic microangiopathy, and post-transplantation lymphoproliferative disease. As these patients present with nonspecific abdominal symptoms, evaluation with using such imaging modalities as ultrasonography and CT is essential in order to assess the extent of gastrointestinal involvement and to diagnose these complications. We present here a pictorial review of the imaging features and other factors involved in the diagnosis of these gastrointestinal complications in pediatric HSCT recipients.