1.Ovarian Involvement of Peripheral T-Cell Lymphoma as Initial Manifestation of Extranodal Disease.
Sang Soo SHIN ; Yong Yeon JEONG ; Sang Gook SONG ; Heoung Keun KANG
Journal of the Korean Radiological Society 2005;53(1):37-39
We report here on a case of peripheral T-cell lymphoma of the ovary as the initial manifestation of extranodal disease. A 45-year-old woman presented with an incidentally detected, ovarian mass. Contrast-enhanced CT scans showed a 6x5.3 cm diameter, heterogeneously enhancing mass in the right adnexa that invaded the adjacent uterus. An exploratory laparotomy revealed a solid mass in the right adnexa, which invaded the uterine cornus. Histological diagnosis was made as a peripheral T-cell lymphoma of the ovary.
Cornus
;
Diagnosis
;
Female
;
Humans
;
Laparotomy
;
Lymphoma, T-Cell
;
Lymphoma, T-Cell, Peripheral*
;
Middle Aged
;
Ovary
;
Tomography, X-Ray Computed
;
Uterus
2.Virtual Gastroscopy Using Spiral CT in Gastric Lesions.
Sang Soo SHIN ; Heoung Keun KANG ; Yong Yeon JEONG ; Man Won YOON ; Sang Gook SONG ; Gwang Woo JEONG
Journal of the Korean Radiological Society 1998;39(5):947-952
PURPOSE: To compare virtual gastroscopy using spiral CT with conventional endoscopy for the detection andevaluation of gastric lesions. MATERIALS AND METHODS: During a previous six-month period, 30 patients withpathologically-proven gastric lesions underwent conventional endoscopy and virtual gastroscopy using spiral CT.There were 18 cases of advanced gastric carcinoma, eight benign ulcers, and four submucosal tumors(two leiomyomas,two lymphomas). Source images of virtual gastroscopy were three-dimensionally reconstructed within an AdvantageWindows Workstation and virtual gastroscopy images were obtained using Navigator Software. On analysis, imageswere graded according to their quality (excellent, good, poor). Virtual gastroscopy images were interpreted by tworadiologists blinded to conventional endoscopic findings, and were subsequently compared with endoscopic findingsin terms of detectability and findings. In the cases of advanced gastric carcinoma, lesions were classifiedaccording to Borrmann's system. RESULTS: For virtual gastroscopy, overall image quality was excellent in 21cases(70%), good in five(17%), and poor in four(13%). Lesions were detected in 25 cases(83%). Among the 18advanced gastric carcinomas, virtual gastroscopy image quality was excellent in 14 cases(78%), good in two(11%),and poor in two(11%). Lesions were detected in 16 cases(89%). Two Borrmann type IV cases were not detected. Amongthe eight benign ulcers, virtual gastroscopy image quality was excellent in three cases(38%), good in three(38%),and poor in two(25%). The detection of lesion was possible in five cases(63%). In all submucosal tumors, virtualgastroscopy image quality was excellent. Lesions were detected in all cases. CONCLUSION: Virtual gastroscopyusing spiral CT is safe and noninvasive, and for the evaluation of gastric lesions may be complementary to axialCT. It successfully detects gastric lesions, and in depicting the pattern of gastric folds its image quality isexcellent.
Endoscopy
;
Gastroscopy*
;
Humans
;
Tomography, Spiral Computed*
;
Ulcer
3.A Case of Complex Cardiac Myxoma Combined with Nipple Myxoma.
Gwang Gook KIM ; Heung Sun KANG ; Gye Won LEE ; Min Su SONG ; Jin Man CHO ; Jung Hwi CHO ; Jung Sang SONG ; Jong Hwa BAE
Korean Circulation Journal 1998;28(3):453-457
The majority of cardiac myxoma occur sporadically as isolated lesions in the left atrium of middle-aged women. However, a familial form and a syndrome form of this lesion have also been identified. The syndrome myxoma can present itself with pigmented skin lesions and peripheral or endocrine neoplasms. The familial and syndrome forms of cardiac myxomas can usually be distinguished from the sporadic form by their occurrences at younger ages, their unusual locations, the multicentricity of the lesions, and the presence of rare pathological conditions. In addition, a higher rate of recurrent lesions is usually associated with the familial and syndrome forms of this disease. We present a case of complex cardiac myxoma with pigmented skin lesions and breast myxoma and report it with a review of literature.
Breast
;
Female
;
Heart Atria
;
Humans
;
Myxoma*
;
Nipples*
;
Skin
4.Hepatic Perfusion Disorders: A Pictorial Review of CT and MR Imaging.
Nam Yeol YIM ; Yong Yeon JEONG ; Sang Soo SHIN ; Sang Gook SONG ; Hyo Soon LIM ; Suk Hee HEO ; Nam Kyu CHANG ; Shen Yu LAN ; Woong YOON ; Heoung Keun KANG
Journal of the Korean Radiological Society 2005;53(3):199-213
The liver has a unique dual blood supply through the portal vein and the hepatic artery. There are several communications between these two vessels under various conditions such as in hepatic tumors, trauma and liver cirrhosis, vascular compromise, among others. When vascular compromise occurs, this dual blood supply system can cause changes in the volume of blood flow in individual vessels or even in the direction of blood flow. With rapid image acquisition and increased resolution available in multislice CT and MR imaging, hepatic perfusion disorders are now more frequently encountered than in the past. Familiarity with imaging findings of these perfusion disorders will be helpful in characterizing focal hepatic lesions and will also help to avoid false positive diagnoses.
Diagnosis
;
Hepatic Artery
;
Liver
;
Liver Cirrhosis
;
Magnetic Resonance Imaging*
;
Perfusion*
;
Portal Vein
;
Recognition (Psychology)
5.Assessment of Mesenteric Vascular Steno-occlusive Lesion in Acute Mesenteric Ischemia: Comparison between CT Angiography and Digital Subtraction Angiography.
Sang Soo SHIN ; Yong Yeon JEONG ; Yu Lan SHEN ; Woong YOON ; Hyo Soon LIM ; Sang Gook SONG ; Nam Kyu JANG ; Jae Kyu KIM ; Heoung Keun KANG
Journal of the Korean Radiological Society 2005;53(3):185-190
PURPOSE: Acute mesenteric ischemia (AMI) is one of the most dramatic abdominal emergencies. The most common cause of AMI is a thrombo-embolism of the mesenteric artery or vein. The aim of this study was to evaluate the feasibility of CT angiography for evaluating mesenteric vascular steno-occlusive lesion in AMI. MATERIALS AND METHODS: Fifteen patients with clinically and angiographically proven AMI underwent a two-phase CT. The CT angiographic images were reconstructed using a 3D rendering algorithm, such as the maximum intensity projection and volume-rendering. All the CT angiographic images were reviewed with respect to stenosis or occlusion of mesenteric vessel by the consensus of two radiologists, and were correlated with the findings of digital subtraction angiography. RESULTS:Digital subtraction angiography (DSA) visualized 60 mesenteric vessels including the superior mesenteric artery (n=15) and vein (n=15), and the inferior mesenteric artery (n=15) and vein (n=15). DSA showed steno-occlusive lesions in 16 mesenteric vessels (13 superior mesenteric arteries, two superior mesenteric veins, and one inferior mesenteric artery). CT angiography detected steno-occlusive lesions in 16 mesenteric vessels (12 superior mesenteric arteries, one superior mesenteric vein, and three inferior mesenteric arteries). The sensitivity, specificity, and accuracy of CT angiography for evaluating mesenteric vascular steno-occlusive lesion were 87.5%, 95.4%, and 93.3%, respectively. CONCLUSION: CT angiography is an useful adjunct to abdominal CT in an AMI setting on account of its ability to detect the causes of AMI such as a steno-occlusive lesion of the mesenteric vessel.
Angiography*
;
Angiography, Digital Subtraction*
;
Consensus
;
Constriction, Pathologic
;
Emergencies
;
Humans
;
Ischemia*
;
Mesenteric Arteries
;
Mesenteric Artery, Inferior
;
Mesenteric Artery, Superior
;
Mesenteric Veins
;
Sensitivity and Specificity
;
Tomography, X-Ray Computed
;
Veins
6.The Usefulness of 3T-TOF MR angiography in Patients with Cerebral Infarction.
Je Hee HAN ; Jeong Jin SEO ; Tae Woong CHUNG ; Woong YOON ; Nan Kyu JANG ; Sang Soo SHIN ; Hyo Soon LIM ; Sang Gook SONG ; Yong Yeon JEONG ; Heoung Keun KANG
Journal of the Korean Society of Magnetic Resonance in Medicine 2005;9(2):94-100
PURPOSE: This study was designed to evaluate the usefulness of 3T-TOF MR angiography (3T-TOF MRA) compared with transcranial Doppler sonography (TCD) and conventional angiography (CA) in patients with suspected cerebral infarction. MATERIALS AND METHODS: Fifty four patients with clinical symptoms of cerebral infarction were involved in this study, and had undergone 3T-TOF MRA and TCD, with CA in 11 patients. On the basis of divisions of the carotid artery, four groups were designated: group I, both vertebral arteries and basilar artery; group II, segment between 2 cm below bifurcation of common carotid artery and genu portion of internal carotid artery; group III, segment between petrous portion of internal carotid artery and bifurcation of anterior and middle cerebral artery; group IV, from bifurcation of anterior and middle cerebral artery to thier distal branches. Two radiologists retrospectively reviewed the vascular imaging and stenosis in 3T-TOF MRA, TCD, and CA. RESULTS: A total of 432 arteries, 108 in each group, were available. The assessment of vascular imaging quality in 3T-TOF MRA is scored 2.98, 2.96, 2.91, 2.88 in 4 groups, respectively. Agreement among 3TTOF MR angiography, TCD, and CA was high. CONCLUSION: 3T-TOF MR angiography may be useful method for the assessment of stenotic lesions of cranial vasculature in patients with cerebral infarction.
Angiography*
;
Arteries
;
Basilar Artery
;
Carotid Arteries
;
Carotid Artery, Common
;
Carotid Artery, Internal
;
Cerebral Infarction*
;
Constriction, Pathologic
;
Humans
;
Middle Cerebral Artery
;
Retrospective Studies
;
Ultrasonography, Doppler, Transcranial
;
Vertebral Artery
7.The Usefulness of In Vitro Proton Magnetic Resonance Spectroscopy for Differentiating Between Abdominal Body Fluids.
Jeong Won OH ; Sang Soo SHIN ; Yong Yeon JEONG ; Sang Gook SONG ; Hyo Soon LIM ; Hyun Ju SEON ; Jae Kyu KIM ; Gwang Woo JEONG ; Heoung Keun KANG
Journal of the Korean Radiological Society 2006;55(4):361-371
PURPOSE: The purpose of this study was to determine whether in vitro proton (1H) magnetic resonance spectroscopy (MRS) is useful for distinguishing between abdominal types of fluids. MATERIALS AND METHODS: Thirty fluid samples that were obtained from patients who were undergoing diagnostic or therapeutic percutaneous drainage of abdominal fluids were examined in this study. According to their gross appearance and smell, each sample was classified as either purulent fluid (n=12) or non-purulent fluid (n=18). The non-purulent fluids were subdivided into hemorrhagic fluid (n=2), serosanguinous fluid with debris (n=2), and serosanguinous fluid without debris (n=14). In addition, according to the cytologic analysis, each sample was classified as either benign fluid (n=23) or malignant fluid (n=7). A set of humoral pathological examinations that included biochemical analysis and culture of the fluid were performed for all the fluid samples. In vitro 1H MRS was performed by using a 1.5T MR system and a birdcage head coil. MR spectra were obtained by using point-resolved spectroscopy (PRESS) (TR/TE=2000/30 msec) with water suppression. The MR spectra were analyzed on the basis of agreement between a radiologist and a physicist who worked in consensus. RESULTS: The MR spectra obtained from 30 samples could be classified into 8 different patterns, according to the presence of lipid (0.9/1.3 ppm), lactate (1.3 ppm), acetate (1.9 ppm), and succinate (2.4 ppm) peaks. The MR spectral patterns of the purulent fluids (n=12) were classified as follows: pattern-1 (n=7, 58%), pattern-2 (n=2, 17%), pattern-3 (n=1, 8%), pattern-6 (n=1, 8%) and pattern-8 (n=1, 8%). The MR spectral patterns of the non-purulent fluids (n=18) were classified as follows: pattern-4 (n=1, 6%), pattern-5 (n=5, 28%), pattern-6 (n=1, 6%), pattern-7 (n=3, 17%) and pattern-8 (n=8, 44%). The MR spectral patterns of the purulent fluids were significantly different from those of the non-purulent fluids (p < .05). The MR spectral patterns of benign fluids (n=23) were classified as follows: pattern-1 (n=7, 30%), pattern-2 (n=2, 9%), pattern-3 (n=1, 4%), pattern-4 (n=1, 4%), pattern-5 (n=3, 13%), pattern-6 (n=2, 9%), pattern-7 (n=1, 4%) and pattern-8 (n=6, 26%). The MR spectral patterns of malignant fluids (n=7) were classified as follows: pattern-5 (n=2, 29%), pattern-7 (n=2, 29%) and pattern-8 (n=3, 43%). No significant difference was found between the spectral patterns of the benign and malignant fluids (p= .300). CONCLUSION: In vitro 1H MRS could be useful for differentiating between purulent fluid and non-purulent fluid.
Abscess
;
Body Fluids*
;
Consensus
;
Drainage
;
Head
;
Humans
;
Lactic Acid
;
Magnetic Resonance Spectroscopy*
;
Protons*
;
Smell
;
Spectrum Analysis
;
Succinic Acid
;
Water
8.Transvenous Embolization in Patients with Dural Arteriovenous Fistula.
Eun Ju LEE ; Woong YOON ; Jeong Jin SEO ; Sang Soo SHIN ; Hyo Soon LIM ; Sang Gook SONG ; Nam Gyu JANG ; Suk Hee HEO ; Heoung Keun KANG
Journal of the Korean Radiological Society 2005;53(4):245-251
PURPOSE: To evaluate the efficacy of transvenous embolization in patients with dural arteriovenous fistula (DAVF). MATERIALS AND METHODS: From October 2002 to July 2004, eight patients with angiographically confirmed DAVF underwent transvenous embolization of the affected dural sinuses. Concomitant transarterial embolization was performed in four patients. Patients included five men and three women aged 45-78 years (mean age, 55.4 years). The patient's medical records and angiographic features were retrospectively reviewed. Patients had follow-up periods ranging from 5 to 24 months (mean, 16.5 months). RESULTS: The locations of DAVF were transverse - sigmoid sinus in six patients and cavernous sinus in two patients. According to Cognard's classification, four of the DAVFs were Type I, two were type IIa, and two were Type IIb. Embolic materials used for the transvenous embolization were platinum detachable coils and fibered microcoils. After the transvenous embolization, there was complete obliteration of the DAVF in seven patients and significant flow reduction in one patient. All cases were clinically successful. There were no transient or permanent complications as a result of the endovascular procedures in any of the patients. One patient who had symptom recurrence 2 months after the initial treatment was successfully treated with repeated transvenous embolization. The remaining seven patients had no symptom recurrence during the follow-up period. CONCLUSION: Transvenous embolization is an effective and safe method in the treatment of patients with DAVF.
Arteriovenous Fistula
;
Cavernous Sinus
;
Central Nervous System Vascular Malformations*
;
Classification
;
Colon, Sigmoid
;
Endovascular Procedures
;
Female
;
Follow-Up Studies
;
Humans
;
Male
;
Medical Records
;
Platinum
;
Recurrence
;
Retrospective Studies
9.Hemodynamic Follow-Up in Adult Patients with Pulmonary Hypertension Associated with Atrial Septal Defect after Partial Closure.
Jinyoung SONG ; June HUH ; Sang Yun LEE ; I Seok KANG ; Chang Ha LEE ; Cheul LEE ; Ji Hyuk YANG ; Tae Gook JUN
Yonsei Medical Journal 2016;57(2):306-312
PURPOSE: We evaluated the hemodynamic statuses of patients after partial closure of atrial septal defects with fenestration due to pulmonary hypertension. MATERIALS AND METHODS: Seventeen adult patients underwent partial atrial septal defect closure and follow-up cardiac catheterization. We analyzed hemodynamic data and clinical parameters before and after closure. RESULTS: The median age at closure was 29 years old. The baseline Qp/Qs was 1.9+/-0.6. The median interval from the operation to the cardiac catheterization was 27 months. The CT ratio decreased from 0.55+/-0.07 to 0.48+/-0.06 (p<0.05). The mean pulmonary arterial pressure decreased from 50.0+/-11.5 mm Hg to 32.5+/-14.4 mm Hg (p<0.05), and the pulmonary resistance index decreased from 9.2+/-3.6 Wood units*m2 to 6.3+/-3.8 Wood units*m2 (p<0.05). Eleven patients (64.7%) continued to exhibit high pulmonary resistance (over 3.0 Wood units*m2) after closure. These patients had significantly higher pulmonary resistance indices and mean pulmonary arterial pressures based on oxygen testing before the partial closures (p<0.05). However, no significant predictors of post-closure pulmonary hypertension were identified. CONCLUSION: Despite improvement in symptoms and hemodynamics after partial closure of an atrial septal defect, pulmonary hypertension should be monitored carefully.
Adult
;
Aged
;
Cardiac Catheterization/*adverse effects
;
Female
;
Follow-Up Studies
;
Heart Defects, Congenital/epidemiology/*physiopathology/*surgery
;
Heart Septal Defects, Atrial/surgery
;
Hemodynamics/*physiology
;
Humans
;
Hypertension, Pulmonary/diagnosis/epidemiology/*physiopathology
;
Male
;
Middle Aged
;
Oxygen
;
Postoperative Complications/diagnosis/epidemiology/*physiopathology
;
Retrospective Studies
;
Treatment Outcome
;
Young Adult
10.Epicanthoplasty Using Modified Uchida Method to Shift an Epicanthal Fold in a Superomedial Direction.
Sung Gyu PARK ; In Gook SONG ; Jae Hoon CHOI ; Seung Kook LEE ; Jin Hyo LEE ; Rong Min BAEK ; Sang Woong MOON
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2007;34(6):807-812
PURPOSE: The presence of epicanthal fold and the absence of supratarsal fold are characteristics of Korean eyelids. There has been many surgical procedures to eliminate medial epicanthal fold but those procedures focus on the lengthening of horizontal palpebral fissure and the shortening of intercanthal distance so that the shape of eye had tendency to be sharp. The authors suggest that the supermedial shifting of epicanthal fold enhance the aesthetic result. METHODS: From Sep 2006 to May 2007, total 17 women(mean age 22) with Type III epicanthal fold underwent epicanthoplasty using author's modified Uchida method. The design for epicanthoplasty was drawn superolaterally along epicanthal fold and split V-W plasty was done to shift the epicanthal fold superomedially. Also non-incisional double-eyelid operation was underwent. RESULTS: The epicanthal fold was shifted in superomedially, intercanthal distance was shortened and double-eyelid was achieved. The patients were satisfied with the result and no major complication was noted. CONCLUSION: This method can be effective in correcting the epicanthal fold of Korean eyelid by shifting the epicanthal fold superomedially to make the shape of eye aesthetically without noticeable scar.
Cicatrix
;
Eyelids
;
Humans
;
Sterilization, Tubal*