췌장의 고형 유두상 상피종의 방사선학적 소견 : 병리 소견과 비교

양익,임주원,고영태,임재훈,양달모,김은경,곽정호,Yang, Ik,Lim, Joo-Won,Ko, Young-Tae,Lim, Jae-Hoon,Yang, Dal-Mo,Kim, Eun-Kyung,Kwak, Jeong-Ho 대한영상의학회 1994 대한영상의학회지 Vol.30 No.1

목 적: 췌장의 고형유두상상피종에 대한 CT 및 초음파의 전형적인 소견들이 여러 문헌에 보고 되었으나 저자들의 경험한 바에 따르면 이들 전형적인 소견 이외에도 비전형적인 소견들이 있어 육안적 조직소견과 함께 비교하여 보고한다. 대상 및 방법: 1980년부터 1992년까지 12년간 수술로 확진된 췌장의 고형유두상상피종 14예를 대상으로 하였는데 남녀비는 1:13이었고 연령별로는 15세부터 49세까지로 평균 연령은 27세이며 CT에 13예, 초음파는 12예에서 시행하였다. 방법으로는 CT와 초음파에서 종괴의 위치, 크기, 밀도, 석회화, 중격등을 후향적으로 분석하여 수술 소견 및 육안적 병리조직과의 상호 관련성을 비교하였다. 결 과: 종괴의 위치는 두부 6예(43%), 미부 5예(36%), 체부 1예(7%) 그 외 두-체부,체-미부 각각 1예(7%)로 비교적 \ulcorner\ulcorner은 나이의 (평균 연령 27세) 여자(93%)였다. 전형적인 소견은 CT 및 초음파에서 주위 조직과 경계가 분명한 종괴로 고형성 종괴는 비교적 피막으로 잘 싸여진 과립상, 유두상 조직으로 보였고 낭성 종괴는 초코렛 색의 진흑같은 출혈성 괴사 조직이었다. 비전형적인 소견으로 종괴내의 석회화는 6예(43%), 중격은 4예(31%)볼 수 있었다. 석회화의 양상은 종괴의 주변부, 내부등에서 다양한 소견으로 보였다. 결 론 : 췌장의 고형유두상상피종의 전형적인 방사선학적, 병리학적 소견 외 종괴의 석회화, 중격등을 육안 병리 소견으로 확인하였는데 이런 비전형적인 방사선학적 소견의 이해는 췌장의 고형유두상상피종의 정확한 수술전 진단을 하는데 도움이 될 것이다. Purpose : Computed tomographic(CT). ultrasonographic(US) findings of soild and papillary epithelial neoplasm of the pancreas were correlated with pathologic findings for the better understanding of this disease entity. Materials and Methods : A retrospective review of CT and US of 14 cases of solid and papillary epithelial neoplasm of the pancreas was carried out in terms of the margin, internal architecture, calcification and septation, and this was correlated with gross pathologic findings.Results : CT and US findings were well defined round masses consisting of both solid and cystic components. Five cases were cystic, four cases were solid and five cases were mixed. Cystic portion of the tumor represented variable degree of hemorrhagic necrosis. Six cases contained foci of calcification , which were linear, marginal and amorphous. Marginal calcification interfered US examination of the mass in three cases. Internal septum was demonstrated in four cases on CT, one case on US and three cases on gross specimen.Conclusions : Our results indicate that calcification and internal septum were considered as a part of radiologic findings in solid and papillary epithelial neoplasm of the pancreas.

천장골염의 방사선학적 소견 : MR 소견을 중심으로

양익,박해정,이열,정수영,박종호,Yang, Ik,Park, Hai-Jung,Lee, Yul,Chung, Soo-Young,Park, Jong-Ho 대한영상의학회 1997 대한영상의학회지 Vol.36 No.5

뇌하수체 선종의 자기공명영상 소견 : 조영증강 형태의 분석

양익,최우석,신인수,류경남,윤엽,Yang, Ik,Choi, Woo-Suk,Shin, In-Soo,Ryu, Kyung-Nam,Yoon, Yup 대한영상의학회 1993 대한영상의학회지 Vol.29 No.6

The magnetic resonance images (MRI) of 30 patients with surgically or biochemically confirmed pituitary adenomas (20 macroadenomas, 10 microadenomas) were retrospectively evaluated. Ten patients had hyperprolactinemia, another eight had acromegaly, another eight had nonfunctioning adenomal and four had Cushing disease. The examinations were performed at a 1.5-T superconducting MR system using a multisection spin-echo technique with 3mm-thick sections and a 256x224 matrix. T1 weighted sagittal and coronal images were obtained before and within 30 minutes after the administration of Gd-DTPA (0.1mmol/kg) Analysis of the MRI was focused on the signal intensity and enhamcement patterns of the pituitary adenoma before and after Gd-DTPA administration. Compared with endocrinologic diagnosis, macroadenoma showed heterogeneous enhacement in 55%, rim enhancement in 35% and homogeneous enhancement in 10%, Conclusively, the enhancement patterns of the pituitary adenoma did not correlate with the subtypes made according to hormone production.

만성 탈구 또는 아탈구를 초래한 고관절의 변화 : 전산화 단층촬영과 단순 필름의 비 교 분석

양익,류경남,이선화,최우석,이일성,Yang, Ik,Ryu, Kyung-Nam,Lee, Sun-Wha,Choi, Woo-Suk,Lee, Eil-Seong 대한영상의학회 1993 대한영상의학회지 Vol.29 No.3

Secondary osteoarthritis of the hip jjoints is a common disease and is frequently followed by chronic sublexation and dislocation. Twenty four cases of the secondary osteoarthritis associated with chronic subluxation and dislocation of the hip joints were evaluated with plain radiography and computed tomotraphy. We retrospectively analyzed 1) the ossification and calcification of the acetabular labrum, 2) the thickeness of the quadrilateral plate of the ilium, and 3) anteroposterior diameter of the acetabulum. The changes of the hip joints in subluxation (n=14) revealed ossification of the acetabular labrum in 12 cases (86%), thickening of the quadriateral plate of the ilium in 11 cases (78%) but anteroposterior diameter of the acetabulum was not changed The changes of the hip joints in dislocation (n=10) revealed no evidence of the ossification of the acetabular labrum, thickening of the quadrilateral plate of the ilium in 10 cases (100%) and decreased anteroposterior diameter of the acetabulum. We conclude that CT findings of subluxation and dislocation of the hip joints can be helpful in the evaluation of the secondary osteoarthritis of the hip joints.

도세포종의 방사선학적 진단 : 경피 경간 문정맥 , 췌정맥 삽관술 및 홀몬 분석

양익,윤엽,고영태,임주원,임재훈,Yang, Ik,Yoon, Yup,Ko, Young-Tae,Lim, Joo-Won,Lim, Jae-Hoon 대한영상의학회 1993 대한영상의학회지 Vol.29 No.4

Two patients with clinical and biochemical evidences of islet cell hyperfunction underwent percutaneous transhepatic portal and pancreatic vein catheterization and hormone assays. Local step-ups of insulin level in the protal venous system, found in two patients with insulinoma, corresponded to tumor sites at surgery. One patient had single insulinoma and the other had malignant insulinoma and liver metastasis. Percutaneous transhepatic protal and pancreatic vein catheterization with measurement of radioimmunoactive insulin concentration is a safe and reliable method, and may play an important role in the localization of adenoma in patients with hyperinsulinism.

가성-Bartter씨 증후군 1예 : 증례 보고

양익,최보환,이열,정수영,Yang, Ik,Choi, Bo-Whan,Lee, Yul,Chung, Soo-Young 대한영상의학회 1994 대한영상의학회지 Vol.31 No.4

자궁 지방평활근종 : 증례보고

양익,고영태,임재훈,이동호,임주원,이일성,Yang, Ik,Ko, Young-Tae,Lim, Jae-Hoon,Lee, Dong-Ho,Lim, Joo-Won,Lee, Eil-Seong 대한영상의학회 1993 대한영상의학회지 Vol.29 No.3

Lipoleiomyomas of the uterus are extremely rare benign neoplasm that can be difficult to differentiate from benign cystic ovarian teratomas. Only a few pure lipomas of the uterus have been documented. We presented a case of lipoleiomyoma of the uterus, in which sonography and computed tomography were performed, but because of its rarity, and confusion with more common uterine leiomyoma and ovarian dermoid tumor, preoperative diagnosis was not suggested. To our best knowledge, this is the first case of uterine lipoleiomyoma in Korea.

폐렴양 폐암에서의 전산화단층촬영의 중요성

양익,성동욱,윤엽,성낙관,Yang, Ik,Sung, Dong-Wook,Yoon, Yup,Sung, Nak-Kwan 대한영상의학회 1992 대한영상의학회지 Vol.28 No.3

Chest CT is the most useful modality in the diagnosis of primary lung cancer, particularly in patients with recurrent pneumonia which are resistant to antibiotic therapy and in high risk age groups for cancer. The purpose of this examination is to assess the usefulness of CT in pneumonic types of lung cancer. The authors retrospectively analyzed 15 histologically proven cases of pneumonic type lung cancer, which had no evidence of primary lung mass, mediastinal lymphadenopathy or other metastatic lesion on plain chest radiography. On CT scan, a primary lung mass was identified in 13 patients(87%), bronchial obstruction was identified in 12 patients(80%), and metastatic foci was found in the bone(one patient), liver(one patient), and spleen(one patient). In Conclusion, CT scan is a useful method to detect the mediastinal lymphadenopathy or pulmonary mass and also should be the initial radiolographic procedure for diagnosis of lung cancer in patients with recurrent pneumonia on imple chest radiography.

황색유아종성 남소

양익,고영태,이동호,임재훈,최우석,Yang, Ik,Ko, Young-Tae,Lee, Dong-Ho,Lim, Jae-Hoon,Choi, Woo-Suk 대한영상의학회 1992 대한영상의학회지 Vol.28 No.1

A case of xanthogranulomatious oophoritis is presented in a patient who had a 3-month history of intrapelvic mass protuding into the vagina. The sonographic findings are a well defined mass shadowing lower echogenicity than the echo of hte uterus at hte posteosuperior aspect of the uterus. The CT findings are an enhancing soid mass with central necrosis containing a multiseptated cystic component

발작성 야간혈색소뇨증 : 1예의 MR, CT 소견

양익,정수영,박해정,이열,전노원,노정우,Yang, Ik,Chung, Soo-Young,Park, Hai-Jung,Lee, Yul,Chun, Rho-Won,Noh, Jung-Woo 대한영상의학회 1995 대한영상의학회지 Vol.33 No.5

발작성 야간혈색소뇨증은 매우 드문 용혈성 빈혈로 MR 소견이 보고되기전까지는 특징적인 방사선학적 소견에 대하여 별로 알려져 있지 않았다. 그러나 최근 MR과 CT의 특 징적 소견이 외국 문헌에는 보고된 바 있으나 국내 보고는 없어 MR 및 CT 소견을 보고한 다. 암적색 혈뇨와 만성 빈혈증상으로 반복 수혈후 발작성 야간혈색소뇨증으로 진단된 61세 여자 환자로 복부 MR의 T1, T2 강조영상에서 신피질은 신수질과 비교해 특징적인 저신호 강도를 보였으며 이러한 저신호강도 부위는 조영제를 사용치 않은 CT에서 신피질의 증가된 음영과 일치하였다. 다량 수혈에 의한 혈철증으로 간은 MR에서 저신호강도를 보였고 비장 은 정상이었으며 또한 조영전 CT 상 비장과 비교해 증가된 간 음영을 볼 수 있었다. Paroxysmal nocturnal hemoglobinuria(PNH) is a rare, acquired disease involving multiple hematopoietic celllines. Characteristics of PNH are intrinsic hemolytic anemia, iron deficiency anemia and venous thrombosis. Wereport a case of PNH with characterostoc MR and CT findings. The signal intensity of renal cortex was lower thanthat of medulla on both T1- and T2- weighted MR imaging. On T2 weighted MR images, the liver showed very lowsignal intensity but the signal intensity of the spleen was normal. On precontrast CT the attenuation of renalcortex was higher than that of renal medulla and the attenuation of liver was higher than that of the spleen.These findings of MR imaging and CT were the result from the deposition of hemosiderin in the cells of proximalconvoluted tubules and transfusional hemosiderosis of liver.