1.Foreign Body Granulomas of the Breast Presenting as Bilateral Spiculated Masses.
Boo Kyung HAN ; Yeon Hyeon CHOE ; Young Hyeh KO ; Seok Jin NAM ; Jung Hyun YANG
Korean Journal of Radiology 2001;2(2):113-116
In Asia, mammography following the injection of foreign materials into the breasts for cosmetic augmentation is frequently seen and diagnosis based on the typical radiologic findings is straightforward. We report the unusual radiologic findings in two patients with foreign body granulomas caused by injected foreign materials and discovered incidentally during screening work up. The mammographic findings were bilateral, hyperdense, spiculated masses, with occasional microcalcification, and at sonography, markedly hypoechoic, spiculated solid masses, located near the pectoralis muscle and partly extending into it, were observed. These radiologic findings mimicked malignancy.
Breast Neoplasms/radiography
;
Case Report
;
Cholesterol
;
Diagnosis, Differential
;
Esthetics
;
Female
;
Granuloma, Foreign-Body/etiology/*radiography/*ultrasonography
;
Human
;
Injections/adverse effects
;
Mammography
;
Middle Age
;
Paraffin
2.Intrinsic Cellular Defenses against Virus Infection by Antiviral Type I Interferon.
Kyung Hyun BOO ; Joo Sung YANG
Yonsei Medical Journal 2010;51(1):9-17
Intrinsic cellular defenses are non-specific antiviral activities by recognizing pathogen-associated molecular patterns (PAMPs). Toll-like receptors (TLRs), one of the pathogen recognize receptor (PRR), sense various microbial ligands. Especially, TLR2, TLR3, TLR4, TLR7, TLR8 and TLR9 recognize viral ligands such as glycoprotein, single- or double-stranded RNA and CpG nucleotides. The binding of viral ligands to TLRs transmits its signal to Toll/interleukin-1 receptor (TIR) to activate transcription factors via signal transduction pathway. Through activation of transcription factors, such as interferon regulatory factor-3, 5, and 7 (IRF-3, 5, 7) or nuclear factor-kappaB (NF-kappaB), type I interferons are induced, and antiviral proteins such as myxovirus-resistance protein (Mx) GTPase, RNA-dependent Protein Kinase (PKR), ribonuclease L (RNase L), Oligo-adenylate Synthetase (OAS) and Interferon Stimulated Gene (ISG) are further expressed. These antiviral proteins play an important role of antiviral resistancy against several viral pathogens in infected cells and further activate innate immune responses.
Animals
;
GTP-Binding Proteins/metabolism
;
Humans
;
Interferon Regulatory Factors/metabolism
;
Interferon Type I/*metabolism/physiology
;
Models, Biological
;
NF-kappa B/metabolism
;
Toll-Like Receptors/metabolism
;
Virus Diseases/*immunology/*metabolism/virology
;
eIF-2 Kinase/metabolism
3.Diagnosis of Myocardial Injury in Blunt Chest Trauma.
Sung Oh HWANG ; Kang Hyun LEE ; Sun Man KIM ; Eun Seog HONG ; Junghan YOON ; Kyung Hoon CHOE ; Boo Soo LEE
Korean Circulation Journal 1997;27(3):326-332
PURPOSE: This study was designed to evaluate diagnostic accuracy of serial electrocardiograms(ECG), myocardial band of creatinine phosphokinase(CK)(CK-MB/CK ratio) and two dimensional echocardiography(ECHO) for myocardial injury in patients with blunt chest trauma. METHODS: We prospectively investigated 54 patients(male : 38, female : 16, mean age : 41) with severe blunt chest trauma. Presence of myocardial injury was determined by increase(>0.1ug/L) of peak serum troponin T(TnT) concentration from serial mesurements. RESULTS: Among 54 patients with blunt chest trauma, 23 patients(43%) had increased peak TnT level which suggested of myocardial injury. Among 23 patients with increased TnT, abnormal ECG findings were found in 18(78%) and echocardiographic abnormalities were observed in 17(74%). Cardiovascular events in 9(39%) of 23 patients with increase Tnt. There was no cardiovascular events in patients with normal TnT. CONCLUSION: Significant proprotion of patients with blunt chest trauma had elevated TnT value which suggested of myocardial injury. We recommend echocardiagraphy and serial tracing of ECG to verify the clinical significance of elevated TnT in patients with blunt chest trauma.
Creatinine
;
Diagnosis*
;
Echocardiography
;
Electrocardiography
;
Female
;
Humans
;
Prospective Studies
;
Thorax*
;
Trinitrotoluene
;
Troponin
;
Troponin T
4.Detectability of Extrahepatic Duct Stones: A Comparison between Nonenhanced and Enhanced CT.
Mi Young KIM ; Ku Sub YUN ; Boo Kyung HAH ; Moon Gyu LEE ; Hyun Chul RHIM ; Yong Ho AUH
Journal of the Korean Radiological Society 1994;30(2):331-335
PURPOSE: A study was performed to compare the detectability of extrahepatic duct stones between nonenhanced and enhanced computed tomography(CT). MATERIALS AND METHODS: Consecutive 30 patients with extrahepatic duct stones were analyzed with special attention to the detectability of stones between nonenhanced and enhanced CT. The extrahepatic duct was further divided into two segments, one above(suprapancereatic) and the other in(intrapancreatic) the head of the pancreas. Conspicuity of the stone was graded as "visible", "suspicious", and "invisible". Three radiologists reviewed the CT images without prior information and determined the location of stone and grade of their conspicuity. RESULTS: The stones were located at the suprapancreatic common duct in 5 patients, intrapancreatic common duct, in 15 patients and both portion of the duct in 10 patients. There was no difference in the detection rate of stones between the two images at suprapancreatic common duct, and was 93%, However, the rate at intrapancreatic common duct was 95% and 64% on nonenhanced and enhanced CT scans, respectively. The overall detection rate was 95% on nonenhance CT and 75% on enhanced CT. CONCLUSION: We concluded that nonenhanced CT was prerequisite to evaluate the extrahepatic duct stones in addition to enhanced CT.
Head
;
Humans
;
Pancreas
;
Tomography, X-Ray Computed
5.The distribution and trend of malocclusion patients visited at depatment of orthodontics.
Duk Boo GOK ; Hee Moon KYUNG ; Oh Won KWON ; Jae Hyun SUNG
Korean Journal of Orthodontics 1989;19(3):35-48
1795 patients who visited orthodontic department from 1979 to 1987, were surveyed on the yearly tendency of patient distribution and state of Angle's classification. The results were as follows; 1. There was increased visiting rate of patient per year and higher visiting rate in female than in male. 2. 8-15 age group was 70.3% in total visiting patients and over 20 age group was 10.8%, under 7 age group was 7.3%. 3. Class I malocclusion was 26.3%, Class II div 1 was 31.0%, Class II div 2 was 1.6% and Class III was 41.1% in total visiting patient. 4. There was increased tendency to be received preventive treatment than fixed treatment and increased extracting rate per year in fixed treatment. 5. There was increased tendency for the number of the patient to be received orthognathic surgery.
Female
;
Humans
;
Male
;
Malocclusion*
;
Orthodontics*
;
Orthognathic Surgery
6.Analysis of Meal Habits from the Viewpoint of Regularity in Korean Type 2 Diabetic Patients.
Hee Jung AHN ; Kyung Ah HAN ; Boo Kyung KOO ; Hyun Jin KIM ; Hyo Jeong KIM ; Kang Seo PARK ; Kyung Wan MIN
Korean Diabetes Journal 2008;32(1):68-76
BACKGROUND: The regular meal pattern with consistent day-to-day calorie and carbohydrate intake is one of the most important determinants of good glycemic control in diabetes. This study was aimed to investigate the meal pattern and their relationships with total energy intake, nutrients intake and glycemic and lipid profile in type 2 diabetes. METHODS: 1,084 subjects were divided according to glycemic status into three groups: the diabetes (DM), dysglycemia (DG) and normal (N). The meal frequency (MF), meal interval (MI) and daily intake of total energy, macronutrient and micronutrient were estimated with the 24 hours dietary recall from the Korean National Health and Nutrition Examination Survey (KNHANES) in 2001 and Eulji hospital. For analysis of meal pattern and it's relations with the nutrients intake, we regrouped into meal skipper (G1), non-meal skipper with unreasonable MI (G2), and non-meal skipper with reasonable MI (G3). RESULTS: 17.5% of DM, 21.8% of DG, 23.3% of N skipped at least one meal a day without significant difference across the groups. 55.9% of non-meal skipper had unreasonable MI. Meal was more regular in older age, lower educated person, employee, and female. G1 took higher fat, and more calories form snack and less micronutrient density, compared with G3 (P < 0.05). HbA1c, total cholesterol and triglyceride values were higher in G1 compared with other two groups (P < 0.05). CONCLUSION: Many type 2 diabetics had the irregular meal patterns, which was associated with poor glycemic control, lipid profiles and less micronutrient density. This suggested that another treatment strategy might be required for those who had irregular lifestyle.
Cholesterol
;
Energy Intake
;
Female
;
Humans
;
Life Style
;
Meals
;
Micronutrients
;
Nutrition Surveys
;
Snacks
7.Ultrasonographically-Guided Biopsy after Digital Mammographically Guided Two-Dimensional Localization of Breast Microcalcifications.
Jung Hee SHIN ; Hye Young CHOI ; Hyun Ah KIM ; Boo Kyung HAN ; Woo Kyung MOON
Journal of the Korean Radiological Society 2008;58(2):181-187
PURPOSE: To investigate the efficacy of ultrasound (US)-guided core biopsies after digital mammography-guided two-dimensional localization (DM-2DL) of breast microcalcifications. MATERIALS AND METHODS: Twenty-two patients with 23 suspicious microcalcifications underwent US-guided core biopsies after DM-2DL, to mark the sites on the skin where microcalcifications had been found (craniocaudal and mediolateral (or lateromedial) views). Of the 23 lesions, 4 were sampled using a 14-gauge automated gun and the other 19 were sampled using an 8-gauge vacuum-assisted device. The lesions were categorized into two groups: those with and those without microcalcifications observed on US. The success rate for correctly sampling microcalcifications on the specimen radiograph in the two groups was assessed and their pathologic outcomes were investigated. RESULTS: Of the 23 lesions, 16 were invisible and 7 were visible to ultrasonographic microcalcifications. The sampling success rate for the specimen radiographs was 100% for ultrasonographic visible microcalcifications and 88% (14/16) for lesions invisible to ultrasonography after DM-2DL (p = 1.000). The cancer rate of individuals with microcalcifications observed on US (57%, 4/7) was greater than in individuals without visible microcalcifications (13%, 2/16) (p=0.045). CONCLUSION: Although some microcalcifications are invisible on US, a US-guided biopsy after DM-2DL is a useful method for the successful sampling of the microcalcifications.
Biopsy
;
Breast
;
Humans
;
Mammography
;
Skin
8.IVIRI of Acute Cervical Injury: Correlation with Neurologic Deficit.
Sang Joon KIM ; Hyun Ki YOON ; Dae Chul SUH ; Myung Jin SHIN ; Boo Kyung HAH ; Man Soo PARK ; Chang Dong HYUN ; Soon Tae KWON ; Seung Chul LIM
Journal of the Korean Radiological Society 1995;33(4):527-536
PURPOSE: To evaluate MRI findings of spinal cord according to mechanism in acute cervical spinal injury. MATERIALS AND METHODS: 25 patients under went MRI within 1 month after acute cervical trauma. Axial T1WI (TR/TE :500/20), gradient-echo (TR/TE :300/14), sagittal T1WI (TR/TE:500/20), proton (TR/TE :2000. 20 msec), T2WI (TR/TE :2000/80) were performed. In 11 pateints, post-enhancement T1WI was done. Change of spinal cord signal intensity on MRI in addition to the presence of abnormal changes of vertebral body, intervertebral disc and paraspinal soft tissue were evaluated. RESULTS: 15 patients had flexion injury, seven had extension injury and three had injury of unknon mechanism. Twelve patients showed /so-signal intensity on T1WI and high signal intensity on T2WI. Three patients showed low signal intensity on T1WI and high signal intensity on T2WI. Spinal cord hemorrhage occured in 10 patients. We found cord swelling in nine patients and cord compression in 12 patients. In nine patients with cord swelling, extent of cord injury was more than one segment of vertebral body. Ligamentous injury, disc injury, soft tissue injury occurred in 16(64%), 17(68%), 15(60%) patients respectively. Vertebral body fracture was found in 17 patients (68%). The levels of fracture were C6(eight patients) and C5(five patients). CONCLUSION: MRI is valuable in exaluetion of the spinal cord, intervertebral disc, and soft tissue lesions in acute cervical spinal injury. Prognosis is worse in flexion injury than in extension injury, and is well correlated with cord hemorrhage and lesion extent.
Hemorrhage
;
Humans
;
Intervertebral Disc
;
Ligaments
;
Magnetic Resonance Imaging
;
Neurologic Manifestations*
;
Prognosis
;
Protons
;
Soft Tissue Injuries
;
Spinal Cord
;
Spinal Injuries
9.Cardiac arrest due to coronary vasospasm after sugammadex administration -a case report-
Ki Yung BOO ; Sang Hyun PARK ; Sun Kyung PARK ; Changrock NA ; Hyun Jung KIM
Korean Journal of Anesthesiology 2023;76(1):72-76
Clinicians should pay close attention to the potential risk of coronary vasospasm, even cardiac arrest, after sugammadex administration.
10.Helical CT Angiography of the Whole Aorta and Iliac Arteries by Injection of Split Bolus Contrast Media: Comparison with single Bolus Injection Technique.
Lae Hyun PHYUN ; Yeon Hyeon CHOE ; Boo Kyung HAN ; In Wook CHOO
Journal of the Korean Radiological Society 1999;40(1):31-37
PURPOSE: To compare the efficacy of the split-bolus contrast media injection technique in helical CTangiography(CTA) of the whole aorta and iliac arteries with that of the single-bolus technique. MATERIALS AND METHODS: Using the split bolus technique in 23 patients, 90 ml of contrast medium (Ultravist 300) was injected ata rate of 3ml/sec;this was followed by an 8-sec pause and the subsequent injection of 30ml. Using the single bolustechnique in another 23 patients, 120ml of contrast medium was injected for 40sec. continuously. CT angiography ofthe thoracic aorta (slice thickness/pitch=3mm/2:1) was performed, first followed by an interscan delay of 8sec,and the abdominal aorta and iliac arteries were then scanned(slice thickness/pitch=3mm/2:1 or 5mm/1.5:1). In allpatients, CT density was measured in the aortic lumen at eight levels, from the origin of the aorta to the iliacbifurcation. RESULTS: Using the split bolus technique, visual assessment revealed second density peak in theaortic lumen of the upper abdomen in 15 of 23 patients(65%), while the use of the single bolus technique revealedno second density peak in any patient. CT density in the aortic lumen at the level of the esophagogastricjunction, and at all levels below this except the abdominal aortic bifurcation, was significantly higher using thesplit bolus technique than with the single bolus technique (t-test, p<0.05). CONCLUSION: For CTA of the wholeaorta and iliac arteries, the split bolus technique is more effective than the single bolus technique.
Abdomen
;
Angiography*
;
Aorta*
;
Aorta, Abdominal
;
Aorta, Thoracic
;
Contrast Media*
;
Humans
;
Iliac Artery*
;
Tomography, Spiral Computed*