1.Categorization of Meibomian Gland Dysfunction Using Lipid Layer Thickness and Meibomian Gland Dropout in Dry Eye Patients: A Retrospective Study
Phil Kyu LEE ; Jae Lim CHUNG ; Da Ran KIM ; Young Chae YOON ; SoonWon YANG ; Woong-Joo WHANG ; Yong-Soo BYUN ; HyungBin HWANG ; Kyung Sun NA ; HyunSoo LEE ; So Hyang CHUNG ; Eun Chul KIM ; YangKyung CHO ; Hyun Seung KIM ; Ho Sik HWANG
Korean Journal of Ophthalmology 2024;38(1):64-70
Purpose:
In the present study, we determined the prevalence of obstructive meibomian gland dysfunction (MGD), hyposecretory MGD, grossly normal MG, and hypersecretory MGD in patients with dry eye syndrome using lipid layer thickness (LLT) and MG dropout.
Methods:
Eighty-eight patients with dry eye syndrome were included in the study. Patients were categorized into four groups according to the LLT and weighted total meiboscore. The proportion of patients in each group was calculated. The age, sex, Ocular Surface Disease Index, LLT, Schirmer, tear film breakup time, cornea stain, weighted total meiboscore, expressibility, and quality of meibum were compared between the four groups.
Results:
Fifteen eyes (17.0%) had obstructive MGD, two eyes (2.3%) had hyposecretory MGD, 40 eyes (45.5%) had grossly normal MG, and 17 eyes (19.3%) had hypersecretory MGD. The obstructive MGD group was younger than the grossly normal MG group. In obstructive MGD, the ratio of men to women was higher than that of the other groups. However, Ocular Surface Disease Index, Schirmer, tear film breakup time, and corneal stain did not show statistically significant differences between the four groups. The meibum expressibility of the hyposecretoy MGD group was worse than those of the other groups. The meibum expressibility of the hyposecretoy MGD group was poor than those of the obstructive and hypersecretory MGD group.
Conclusions
This categorization was expected to help determine the best treatment method for dry eye syndrome, according to the MG status.
2.Expression of CD133, CD24, CD44 in Cutaneous Malignant Tumors.
Sang Gue KANG ; Chul Hann KIM ; Sung Keun KIM ; Bo Ra CHOI ; Kyu Uang WHANG ; Moon Kyun CHO
Korean Journal of Dermatology 2008;46(6):742-748
BACKGROUND: Based on the unlimited proliferative and self-renewel properties of cancer cells similar to those of stem cells, the idea that cancer may originate from stem cells has been suggested in many different studies and has given rise to cancer stem cell hypothesis. CD133, being normally expressed on the surface of hematopoietic stem cells, has recently been suggested as a marker of cancer stem cells in several malignancies. CD24 and CD44 are membrane proteins reported as markers of various neoplasms. OBJECTIVE: This study was designed to investigate the immunohistochemical expression of the CD24, CD44 and CD133 in squamous cell carcinoma (SCC), basal cell carcinoma (BCC) and malignant melanoma (MM). METHODS: We performed immunohistochemical staining for CD24, CD44 and CD133 using 18 skin cancer tissue samples, including 6 SCCs, 6 BCCs and 6 MMs. The expression of each marker was standardized by the histochemical score (HSCORE). RESULTS: The expression of CD24 showed positive in 1 case of 6 SCCs (mean HSCORE, H; 0.02) and showed negative in 6 BCCs (H; 0.00), 6 MMs (H; 0.00). The expression of CD44 was not observed in 6 SCCs (H; 0.00) but observed in 1 case of 6 BCCs (H; 0.04) and 1 case of 6 MMs (H; 0.03). The expression of CD133 showed positive in 2 cases of 6 SCCs (H; 1.21) and 1 case of 6 BCCs (H; 0.05) and 6 cases of 6 MMs (H; 2.78). CONCLUSION: Our data suggest that CD133 may be a reliable marker of which the higher expression is observed in the more invasive skin cancers and that the existence of cancer stem cells may enhance tumorigenic potential in cutaneous malignant tumors.
Carcinoma, Basal Cell
;
Carcinoma, Squamous Cell
;
Hematopoietic Stem Cells
;
Melanoma
;
Membrane Proteins
;
Neoplastic Stem Cells
;
Skin Neoplasms
;
Stem Cells
3.Non-Calcified Ductal Carcinoma in Situ: Ultrasound and Mammographic Findings Correlated with Histological Findings.
Kyu Ran CHO ; Bo Kyoung SEO ; Chul Hwan KIM ; Kyu Won WHANG ; Yun Hwan KIM ; Baek Hyun KIM ; Ok Hee WOO ; Young Hen LEE ; Kyoo Byung CHUNG
Yonsei Medical Journal 2008;49(1):103-110
PURPOSE: To evaluate radiological findings of non-calcified ductal carcinoma in situ (DCIS) and to correlate those with histological features. MATERIALS AND METHODS: From July 2002 to March 2006, 22 patients with histologically-proven non-calcified DCIS were included. Mammography was obtained in 19 patients, ultrasound in 18 patients, and both examinations in 15 patients. Radiological findings were evaluated according to the Breast Imaging Reporting and Data System by American College of Radiology. Histological tumor subtype and Van Nuys classification of DCIS were assessed. RESULTS: Histological subtypes consisted of mixed type in 11 patients (50%), comedo in 4 (18%), cribriform in 4 (18%), papillary type in 2 (9%), and solid in one (5%). According to Van Nuys classification, group 3 DCIS was observed in 13 (59%) patients. In the 19 patients who underwent mammography, 13 patients presented with abnormal findings: focal asymmetry in 7 patients (37%), masses in 4 (21%), skin thickening in one (5%), and architectural distortion in one (5%). In the 18 patients who had received breast ultrasound, a mass was present in 15 (83%) patients and ductal changes in 3 patients (17%). Sixty percent of patients with masses on ultrasound had group 3 DCIS and 100% of patients with ductal change had group 1 DCIS (p=0.017). CONCLUSION: Diagnosis of non-calcified DCIS by mammography is not an easy task due to the lack of typical malignant calcifications or masses. High resolution ultrasound can be useful for detecting non-calcified DCIS, and ultrasound findings are correlated with histological features.
Adult
;
Aged
;
Aged, 80 and over
;
Breast Neoplasms/metabolism/pathology/*radiography/*ultrasonography
;
Calcinosis/metabolism/pathology
;
Carcinoma, Intraductal,
;
Female
;
Humans
;
Mammography
;
Middle Aged
4.Intraarterial Thrombolysis for Central Retinal Artery Occlusion.
O Ki KWON ; Chul Kyu JUNG ; Kyo Jun WHANG ; Byung Chul KIM ; Eun A JUNG ; Moon Hee HAN
Neurointervention 2008;3(2):69-74
Central retinal artery occlusion (CRAO) typically causes severe and permanent visual loss in the affected eye and vision does not recover in 90% of the patients. It is believed that it occurs by occlusion of the central retinal artery with small emboli from atherosclerotic plaque of internal cerebral artery. Various methods have been introduced to recanalize the occluded artery and remove emboli but considered to fail except thrombolytic therapy. Retina is a part of the brain so basically CRAO is corresponding to acute occlusion of intracerebral artery and retinal ischemia is to cerebral stroke. Accordingly rapid procedure within therapeutic time window, choosing appropriate drugs and doses, reducing hemorrhagic and ischemic complications associated with neurovascular intervention is very important. However, clinical significance of CRAO is much different from that of acute cerebral arterial occlusion, therefore, neurointerventionists should perform this procedure within appropriate range of safety.
Arteries
;
Brain
;
Cerebral Arteries
;
Humans
;
Ischemia
;
Plaque, Atherosclerotic
;
Retina
;
Retinal Artery Occlusion*
;
Retinal Artery*
;
Retinaldehyde
;
Stroke
;
Thrombolytic Therapy
5.Clinical Observation on Hyperkalemic Distal Renal Tubular Acidosis.
Mi Jung KANG ; Choong Hwan KWAK ; Kyu Bok JIN ; Eun A WHANG ; Seung Yeup HAN ; Sung Bae PARK ; Hyun Chul KIM
Korean Journal of Nephrology 2004;23(2):263-269
PURPOSE: Renal tubular aicdosis (RTA) is a disorder of renal acidification out of porportion to the reduction in glomerular filtration rate. Type IV RTA refers to hyperkalemic metabolic acidosis resulting from aldosterone deficiency or resistance. The incidence of each type RTA has not been reported exactly, however reports on type IV RTA have been recently increasing. METHODS: A retrospective clinical analysis was performed in 50 patients with hyperkalemic distal renal tubular acidosis diagnosed between Jan. 1984 and Feb. 2003 at Department of Internal Medicine, Keimyung University, Dongsan Medical Center. RESULTS: From 1984 to 2003, 50 cases of hyperkalemic distal renal tubular acidosis were diagnosed. The mean age was 50.8+/-19.5 years. The two most common conditions were posttransplantation (28%), and diabetes mellitus (22%), which were followed by hypertension (12%), systemic lupus erythematosus (12%), chronic renal failure (12%), and others (26%). Asymptomatic hyperkalemia (34%), and muscle weakness (28%) were the two most common clinical presentations. All patients demonstrated normal anion gap acidosis with positive urine anion gap. The mean creatinine clearance was 25.6+/-16.4 mL/min. The mean baseline PRA and aldosterone levels were 3.82+/-7.16 ng/mL/hr and 110.02+/-108.2 ng/mL, respectively. Hyperkalemia was well responded to 9-alpha-fludrocortisone, furosemide, K-exchane resin, and combinations of these regimens. CONCIUSION: Type IV RTA is the most common type of RTA in children and adults, and can be an important cause of asymptomatic hyperkalemia. Therefore, type IV RTA should be included in the diffrential diagnosis of unexplained hyperkalemia in various clinical settings.
Acid-Base Equilibrium
;
Acidosis
;
Acidosis, Renal Tubular*
;
Adult
;
Aldosterone
;
Child
;
Creatinine
;
Diabetes Mellitus
;
Diagnosis
;
Furosemide
;
Glomerular Filtration Rate
;
Humans
;
Hyperkalemia
;
Hypertension
;
Hypoaldosteronism
;
Incidence
;
Internal Medicine
;
Kidney Failure, Chronic
;
Lupus Erythematosus, Systemic
;
Muscle Weakness
;
Retrospective Studies
6.A Case of Nail Changes Secondary to Docetaxel.
Young Min YOON ; Hong Seok YOON ; Kyu Chul WHANG ; Sang Wook SON ; Sang Won SHIN ; Il Hwan KIM
Korean Journal of Dermatology 2002;40(1):79-80
Docetaxel is a new taxoid antineoplastic drug widely used for advanced breast cancer , ovarian cancer . Skin and nail toxicity are one of the more frequent nonhematologic adverse reactions. Especially, nail changes include dark pigmentation, subungual hemorrahage, acute paronychia, onycholysis, Beau s line etc. We have observed a striking example of multiple Beau s lines from all fingernails and toenails in a man receiving a docetaxel infusion for treatment of metastatic cancer with unknown-origin.
Breast Neoplasms
;
Nails
;
Onycholysis
;
Ovarian Neoplasms
;
Paronychia
;
Pigmentation
;
Skin
;
Strikes, Employee
7.Experience of Catheter Implantation for Continuous Ambulatory Peritoneal Dialysis and Catheter Related Complications.
Jung Myun KWAK ; Suk In JUNG ; Youn Ki MIN ; Seok Hyung KANG ; Yong Geul JOH ; Min Young CHO ; Tae Jin SONG ; Jae Bok LEE ; Jeoung Won BAE ; Sung Ok SUH ; Young Chul KIM ; Cheung Wung WHANG ; Won Yong CHO ; Hyung Kyu KIM
Journal of the Korean Surgical Society 2002;62(2):133-138
PURPOSE: By virtue of advances in scientific methods and technical systems, there has been a rapid growth in the number of end stage renal disease (ESRD) patients treated using continuous ambulatory peritoneal dialysis (CAPD) as their primary renal replacement therapy. However, there are various catheter related complications that are limiting factors in patient and catheter maintenance. This study was aimed at introducing of the techniques of CAPD catheter implantation designed for reducing the complication rate, as well as conducting an investigation of the incidence of CAPD catheter related complications and patient survival and catheter survival rates. METHODS: We performed 234 cases of CAPD catheter implantation using a conventional surgical method (n=162, between January 1993 and December 1997) or a modified surgical method (n=72, between January 1998 and December 1999), and retrospectively reviewed the patient's medical records to elucidate the incidence of early catheter related complications and the catheter removal rate in relation to the surgical methods. RESULTS: There were 21 cases (23.8%) of peritonitis in the modified group, which was less than that in the conventional group (79 cases, 48.8%) (P=0.036). There were 9 cases (12.5%) of exit site and tunnel infection in the modified group, which was less than that in the conventional group (36 cases, 22.2%) (P=0.019). We were able to reduce the peritonitis as well as exit site and tunnel infection by a long segment of tunneling and immobilization of the catheter to the skin. Nine cases of leakage (5.5%) have occurred in the conventional group and one case (1.3%) in the modified group; the difference was statistically significant (P=0.046). CONCLUSION: These results indicate that our modified surgical methods can reduce the rate of early catheter related complications.
Catheters*
;
Humans
;
Immobilization
;
Incidence
;
Kidney Failure, Chronic
;
Medical Records
;
Peritoneal Dialysis, Continuous Ambulatory*
;
Peritonitis
;
Renal Replacement Therapy
;
Retrospective Studies
;
Skin
;
Survival Rate
;
Virtues
8.A Case of Nail-Patella Syndrome Who Presented with Characteristic Electron Microscopic Findings.
Seung Yeup HAN ; Min Kyoung KANG ; Eun Ah WHANG ; Sung Bae PARK ; Hyun Chul KIM ; Si Hyun JEON ; Yu Na KANG ; Kwan Kyu PARK
Korean Journal of Nephrology 2002;21(5):837-841
Nail-patella syndrome is a relatively rare autosomal dominant disorder characterized by dysplastic nail, hypoplastic or absent patella, and dislocation of radial head and iliac horns. In addition, renal abnormalities have been reported. The usual clinical signs of the renal involvement are asymptomatic proteinuria, microscopic hematuria, and in some cases progression to end stage renal disease. We present the case of adult with nail-patella syndrome, who developed proteinuria. Electron microscopy revealed irregular thickening of the glomerular basement membrane with areas of rarefaction, giving rise to a pathognomonic "moth-eaten" appearance.
Adult
;
Animals
;
Dislocations
;
Glomerular Basement Membrane
;
Head
;
Hematuria
;
Horns
;
Humans
;
Kidney Failure, Chronic
;
Microscopy, Electron
;
Nail-Patella Syndrome*
;
Patella
;
Proteinuria
9.A Study for Incidence of Childhood Leukemia in Kyongnam Province, Korea.
Soon Yong LEE ; Kwang Yong PARK ; Geun Ha CHI ; Myung Jin KO ; Tae Jin YANG ; Sang Kyu PARK ; Byeung Kyu PARK ; Sang Duk KIM ; Ki Hong PARK ; Young Tak LIM ; Young Ho LEE ; Jae Sun PARK ; Hee Young SIN ; Chul Joo LYU ; Hacki Ki KIM ; Kun Soo LEE ; Jeong Ok HAH ; Heung Sik KIM ; Tai Ju WHANG ; Jin Ho CHUN
Korean Journal of Pediatric Hematology-Oncology 2001;8(1):27-34
PURPOSE: Of the cancers in childhood, leukemia is the most frequent one. For the desirable control of childhood leukemia, the basic data for the incidence has a great importance. The authors made a report about the incidence of leukemia in childhood, which analyzed the data from 126 cases in Kyongnam province, Korea, during 1991~1995. METHODS: The data were obtained from 126 new cases of childhood leukemia who had been living in the Kyongnam province and were diagnosed at the 26 university hospitals or general hospitals in the Kyongnam area and other cities from 1991 to 1995. RESULTS: The age-and-sex adjusted annual incidence rate per 100,000 population during 1991~1995 varied from 1.82 to 2.86, and cumulative annual incidence rate was 2.41 (male 2.26 and female 2.57 respectively). Male to female sex ratio was 1:1 in total cases. By the major types of childhood leukemia, the cases were composed of acute lymphocytic leukemia 70.6%, acute myelocytic leukemia 26.9% and chronic myelocytic leukemia 2.5%. The cumulative annual incidence rate per 100,000 population (crude rate) during 1991~1995 were 2.77 in Ulsan city, 2.62 in Chinju city and 2.34 in the whole area of Kyongnam province. CONCLUSION: It was concluded that the age-and-sex adjusted annual incidence rate per 100,000 of childhood in Kyongnam province was 2.41, which was lower than that in Pusan city in the same period. And, there was no significant difference of the cumulative annual incidence rate between Ulsan area and Chinju area in the same period.
Busan
;
Female
;
Gyeongsangnam-do*
;
Hospitals, General
;
Hospitals, University
;
Humans
;
Incidence*
;
Korea*
;
Leukemia*
;
Leukemia, Myelogenous, Chronic, BCR-ABL Positive
;
Leukemia, Myeloid, Acute
;
Male
;
Precursor Cell Lymphoblastic Leukemia-Lymphoma
;
Sex Ratio
;
Ulsan
10.Empyema Thoracis Resulting from Migrated Acupuncture Needle: Two Cases.
Eun Gu WHANG ; Bum Shik KIM ; Kyu Suk CHO ; Joo Chul PARK
The Korean Journal of Thoracic and Cardiovascular Surgery 2001;34(1):101-103
We experienced two cases of empyema thoracis which were caused by migrated acupuncture needle. Two patients were transferred from oriental hospitals because of dyspnea and high fever. Simple chest radiography and computed tomography(CT) of the two cases on admission showed haziness of the lower lung and acupuncture needles in the lung and pleural cavity on admission. Removal of acupuncture needles and decortication were performed.
Acupuncture*
;
Dyspnea
;
Empyema*
;
Fever
;
Humans
;
Lung
;
Needles*
;
Pleural Cavity
;
Radiography
;
Thorax

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