1.Torsion of Benign Cystic Teratoma of Ovary at 37 Weeks Gestation.
Chu Yeop HUH ; Sang Wook LEE ; Young Seung OH
Korean Journal of Perinatology 1998;9(4):440-444
Ovarian tumor in pregnancy is not rare and benign cystic teratoma is most common ovarian tumor in pregnancy. Most ovarian tumor in pregnancy is found at first and second trimester but sometimes found at third trimester and it is difficult to make a decision for management. Moreover physician should consider fetal age and mother's condition, and weigh outcome of operation for complicated ovarian tumor in pregnancy. Torsion of ovarian tumor is not an uncommon complication during first trimester of pregnancy and puerperium but rare occurs during the third trimester of pregnancy. We have experienced a case of torsion of benign cystic teratoma of ovary which occurred at 37 weeks gestation in a 25 year-old woman. So we report this case with a brief review of literature.
Adult
;
Female
;
Gestational Age
;
Humans
;
Ovary*
;
Postpartum Period
;
Pregnancy Trimester, First
;
Pregnancy Trimester, Second
;
Pregnancy Trimester, Third
;
Pregnancy*
;
Teratoma*
2.Detection of Mycobacterium leprae in Tissue and Blood by Polymerase Chain Reaction.
Kyu Suk LEE ; Kwang Youl OH ; Young Wook RYOO ; Min Ho SUH ; Joon Young SONG
Annals of Dermatology 1994;6(2):130-135
BACKGROUND: Methods to detect and quanitify Mycobacterium leprae(M. leprae)are needed for studies involving the epidemiology, pathogenesis, and chemotherapy of leprosy. Serological assays and skin tests lack the sensitivity and specificity to serve as diagnostic tool for M. leprae infection. The polymerase chain reaction(PCR) based on the selective amplification of an 530-bp frangment of the gene encoding the proline-rich antigen of M. leprae was performed with sections of fixed or frozen biopsy samples from leprosy patients. OBJECTIVE: This study was done to investigate the applicability of PCR for the detection of low numbers of M. leprae in tissues and peripheral blood. METHODS: The PCR was used to amplify a 530-base-pair M. leprae DNA with the thermoxtable Taq DNA polymerase. RESULTS: The In frozen skin tissues and peripheral blood of leprosy patients. relatively high detection rates of PCR products was achieved by using direct gel analysis as well as Southern blot hybridization. CONCLUSION: These results suggest that PCR amplification for the detection of M. leprae may be useful for the epidemiologic study of large papulations as well as coinical astudies on the individual patients.
Biopsy
;
Blotting, Southern
;
DNA
;
Drug Therapy
;
Epidemiologic Studies
;
Epidemiology
;
Humans
;
Leprosy
;
Mycobacterium leprae*
;
Mycobacterium*
;
Polymerase Chain Reaction*
;
Sensitivity and Specificity
;
Skin
;
Skin Tests
;
Taq Polymerase
3.Cutaneous Metastasis of Breast Cancer Showing Diffuse Purpuric Macules and Patches
Hyun-Wook KIM ; Won-Oh KIM ; Young-Wook RYOO ; Sung-Ae KIM
Korean Journal of Dermatology 2021;59(2):140-143
Cutaneous and subcutaneous metastases from the neoplasm of visceral organs are uncommon and have been estimated to occur in only 0.7%∼9% of patients. Among these cases, breast cancer is the most frequently observed malignancy. The incidence of cutaneous metastasis of breast cancer is 23.9%. The most common clinical manifestation of cutaneous metastasis of breast cancer is non-fixed painless erythematous nodules on the anterior chest. However, cutaneous metastasis of breast cancer shows a wide range of clinical manifestations and can mimic benign dermatologic lesions such as erythema annulare centrifugum, contact dermatitis, cellulitis, and erysipelas. We report a 52-year-old woman who presented with diffuse purpuric macules and patches on the right trunk. Finally, based on the clinical and pathologic findings, a diagnosis of cutaneous metastasis of breast cancer was made, and the patient expired 1 year later.
4.Categorization of Vascular Lesions and Selection of Treatment Modalities Using Color Doppler Ultrasound.
Oh Eon KWON ; Jong Young OH ; Chae Wook LEE ; Ki Ho KIM
Korean Journal of Dermatology 2005;43(11):1488-1496
BACKGROUND: Vascular lesions can be diagnosed by biopsy, simple x-ray, ultrasound, CT, MRI, venography and MR angiography. These diagnostic tools can identify the detailed structure and abnormalities in the peri-lesional area of vascular lesions. Color Doppler ultrasound (CDU) can demonstrate the hemodynamic features, distribution of veins and arteries, shunts and structures of vascular lesions. Authors have tried to categorize vascular lesions with CDU and also applied this to the selection of treatment methods. MATERIALS AND METHODS: Forty-seven vascular lesions were evaluated by means of CDU. All patients underwent a complete clinical evaluation as well as peak systolic velocity (PSV), peak diastolic velocity (PDV), resistive index (RI) of feeding arteries. In particular, we evaluated the hemodynamic features and structures of vascular lesions. We categorized the vascular lesions and then treated them with systemic steroid, compression, SPTL1 Dye laser, steroid intralesional injection and sclerotherapy. We evaluated the clinical improvement and objective effects of treatments by CDU. RESULTS: There were 37 hemangiomas and 10 vascular malformations. Vascular lesions were classified by the hemodynamic features and structures: category Ia (infantile hemangioma, regressed infantile hemangioma), Ib (RICH), Ic (deep hemangioma, mixed hemangioma), II (arteriovenous malformation), III (venous malformation, verrucous hemangioma). The clinical improvement after treatment was associated with the decrease of PSV and RI values. The clinical improvement above 50% resolution of the lesion showed 70.9% in category Ia, 50% in Ib, 66.6% in Ic, 83.3% in II and 50% in III. CONCLUSIONS: The analysis of hemodynamic feature and structures by CDU can be helpful in the study of vascular lesions. These processes suggest CDU be a useful modality in differential diagnosis of vascular lesions and a more advantageous tool in the decision of treatment policy than the conventional modalities. And it is also useful for the evaluation of treatment effects.
Angiography
;
Arteries
;
Biopsy
;
Diagnosis, Differential
;
Hemangioma
;
Hemodynamics
;
Humans
;
Injections, Intralesional
;
Lasers, Dye
;
Magnetic Resonance Imaging
;
Phlebography
;
Sclerotherapy
;
Ultrasonography*
;
Vascular Malformations
;
Veins
5.A 4-Year Follow-Up of Subjects with Visually Equivocal Amyloid Positron Emission Tomography Findings from the Alzheimer’s Disease Neuroimaging Initiative Cohort
Jae Seung KIM ; Minyoung OH ; Minjung SEO ; Sun Young OH ; Heeyoung KIM ; Byung Wook BYUNG WOOK ;
Nuclear Medicine and Molecular Imaging 2021;55(2):71-78
Background:
To date, the clinical significance of visually equivocal amyloid positron emission tomography (PET) has not been well established.
Objective:
We studied the clinical significance of equivocal amyloid PET images from the Alzheimer’s Disease Neuroimaging Initiative (ADNI).
Methods:
Subjects with F-18 florbetapir PET scans at baseline who were followed up for 4 years were selected. Clinical characteristics, imaging biomarkers, cognitive function, and rate of conversion to AD were compared in subjects with visually equivocal findings.
Results
Of 249 subjects who completed the follow-up, 153 (61.4%), 20 (8.0%), and 129 (30.5%) were F-18 florbetapir-negative, -equivocal, and -positive, respectively. The mean standardized uptake value ratios (SUVR) of F-18 florbetapir PET were 0.75 ± 0.04, 0.85 ± 0.10, and 1.00 ± 0.09 for each group (p <0.001 between groups), and 15.0%, 70.0%, and 98.7% of patients were quantitatively above the positive threshold. The change in the SUVR of F-18 florbetapir PET was higher in the equivocal (6.09 ± 3.61%, p <0.001) and positive (3.13 ± 4.38%, p <0.001) groups than the negative group (0.88 ± 4.28%). Among the subjects with normal or subjective memory impairment and mild cognitive impairment, 5.3% with negative amyloid PET and 37.5% with positive amyloid PET converted to AD over the 4-year period. None of the equivocal amyloid PET subjects converted to AD during this period.
6.Influence of a Soft Contact Lens (Soflens) on the Penetration of 24NaCI and 3H Cortisol Solution into the Anterior Chamber.
Young Hwan OH ; Sang Wook RHEE
Journal of the Korean Ophthalmological Society 1977;18(2):163-172
A soft contact lens is used not only for the correction of refractive errors, but also for therapeutic purpose. Soft contact lens is hydrophilic, it takes up and releases medicaments so that it promotes and prolongs the penetration of drugs through the cornea. It has been also recently report!,!d that a soft lens increases pressure lowering effect in pilocarpine therapy. The purpose of this study is to evaluate the penetration rate of drugs immersed into a soft contact lens (Soflens) through the cornea. In this study the authors used 24NaCl and [3H] cortisol solution on the rabbit cornea with or without Soflens. The results were as follows: 1. During four hours following the administration of 24NaCl the pent ration rate into the anterior chamber when Soflens, immersed in 24NaCl solution for 2 minutes was applied, showed 2.4 times higher than that of topical instillation. In topical instillation, the Soflens group revealed a higher penetration rate (1.6 times) than non-Soflens group. It was revealed that Soflens promoted the penetration of 24NaCl solution into the anterior chamber of rabbits. 2. Intracorneal penetration of 24NaCl solution was 1.5 times higher in topical instillation in the Soflens group than the non-Soflens group. Meanwhile, the highest penetration (2.2 times) was noted in the group of Soflens which were soaked in 24NaCl solution. The highest concentration in the iris (1.5 times) was noted in the soaked Soflens group. 3. In topical instillation of cortisol solution in the group of Soflens without treatment and the group of Soflens immersed in cortisol solution showed much lower penetration rates into the anterior chamber with 0.9 and 0.5 times than those of the topical instillation group. Based on the above results, it is clear that Soflens does not always promote the penetration of drugs into the anterior chamber. The drug-sponging effect is supposed to very according to various factors such as solubility, molecular weight of drug and physico-chemical properties of a soft con tact lens.
Anterior Chamber*
;
Contact Lenses, Hydrophilic*
;
Cornea
;
Hydrocortisone*
;
Iris
;
Molecular Weight
;
Pilocarpine
;
Rabbits
;
Refractive Errors
;
Solubility
8.Plasma Glucose and Insulin Changes during IV Theophyline Therepy in Preterm Infants with Apnea.
Young Wook YOON ; Yeon Kyun OH ; Eun Hee LEE ; Jung Youl SONG
Korean Journal of Perinatology 1998;9(1):26-30
PURPOSE: The purpose of this study was to evaluate the effects of theophylline in preterm infants with apnea on glucose homeostasis and insulin values. METHOD: In this prospective study, level of glucose and insulin were measured from peripheral blood of 8 neonates(1,450+/-114gm, 31+/-2.1week), who were admitted from April 1, 1997 to July 30, 1997 in Neonatal Intensive Care Unit of Wonkwang University Hospital, for apnea of prematurity(> 20 sec with bradycardia and/or cyanosis) were given aminophylline intravenously. Blood samples were collected at pretreatment, posttreatment 2hours, 1-2days, 3-4days, 5-7days and posttreatment 48hours, and compare to those of the 8 control neonates(1,711+/-232gm, 32+/-1.7week). RESULTS: The results were as follows: 1) Plasma glucose values were significantly higher in the treatment group than those of the control group at 1-2days(104.67+/-20.39mg/dL vs 83.43+/-15.86mg/dL) and 3-4days(111.0+/-32.39mg/dL vs 79.25+/-14.03mg/dL)(p<0.05). 2) Plasma glucose values which were increased at 1-2days(104.67+/-20.39mg/dL)and 3-4days(111.0+-32.39mg/dL), were significantly higher than pretreatment values(66.33+/-31.19mg/ dL)(p<0.02), but were not increased to the level of hyperglycemia(> 125mg/dL). 3) The mean posttreatment glucose levels drawn at 48hours after discontinuation of theophylline was significantly decreased to the values of pretreatment values compared to those of the 1-2days and 3-4days(p<0.01). 4) Insulin concentrations were also increased insignificantly when blood glucose were increased in the treatment group compared with control group. CONCLUSION: In conclusion, intravenous administration of theophylline produces hyperglycemia significantly, including an increase in a serum insulin. But, clinically significant hyperglycemia(> 125mg/dL) was not noted. So, plasma glucose may not need to be monitored in preterm apneic infants receiving theophylline. But, further studies are need to elucidate the effect of theophylline considering the serum toxic level of theophylline.
Administration, Intravenous
;
Aminophylline
;
Apnea*
;
Blood Glucose*
;
Bradycardia
;
Glucose
;
Homeostasis
;
Humans
;
Hyperglycemia
;
Infant
;
Infant, Newborn
;
Infant, Premature*
;
Insulin*
;
Intensive Care, Neonatal
;
Plasma*
;
Prospective Studies
;
Theophylline
9.Prevalence of Intestinal Metaplasia, Dysplasia and Helicobacter pylori Infection by Aging.
Soon Young OH ; Su Mi YOON ; Dong Wook KANG ; Mi Ra PARK
Journal of the Korean Geriatrics Society 1999;3(1):25-33
BACKGROUND : The recent studies shows that Helicobacter pylori (H. pylori) related chronic gastritis leads to dysplasia, intestinal metaplasia and gastric cancer. The aim of this study was to determine the association between precancerous lesion of stomach (dysplasia, intestinal metaplasia) and H.pylori infection in the elderly. METHODS : 469 patients were enrolled this study, Patients with intestinal metaplasia or dysplasia (case, n=148) were compared with controls (without intestinal metaplasia and dysplasia, n=321) about H. pylori positive rates H. pylori positivity was confirmed by histologic determination of endoscopic biopsy specimens. Results : 1) Among study populations H. pylori positive rates were 51.8% (55.8% in male, 40.7% in female). It was significantly higher in male (p=0.001). 2) There were no significant differences in sex distribution between cases and controls, but in old age, the cases were more frequent than in young age (p<0.001). 3) Age distribution of H. pylori positive rates were not significant between cases and controls. 47.5% in intestinal metaplasia, 43.4% in dysplasia, 21.3% in dysplasia+intestinal metaplasia were H. pylori positive. H. pylori positive rates were more higher in controls than cases, followed by in decreasing order by the intestinal metaplasia group, the dysplasia group, and those having both (p=0.003). 4) Age and sex adjusted H. pylori positive rates were more higher in controls (42.7%) than in cases (25.0%)(p<0.009). CONCLUSION : The prevalence of intestinal metaplasia and dysplasia was age dependent. But we couldn't explain the carcinogenic effect of H. pylori, because H. pylori positive rates were lower in cases than in controls
Age Distribution
;
Aged
;
Aging*
;
Biopsy
;
Gastritis
;
Helicobacter pylori*
;
Helicobacter*
;
Humans
;
Male
;
Metaplasia*
;
Prevalence*
;
Sex Distribution
;
Stomach
;
Stomach Neoplasms
10.A Case of Hypohydrotic Ectodermal Dysplasia.
Chun Oh LEE ; Byung Min MOON ; Young Wook KIM ; Ki Bok KIM
Journal of the Korean Pediatric Society 1990;33(12):1718-1722
No abstract available.
Ectoderm*
;
Ectodermal Dysplasia*