1.A Case of Keratosis Palmoplantaris Nummularis.
Dong Hoon SONG ; Dong Soon YANG ; Dong Sik BANG
Korean Journal of Dermatology 1988;26(6):916-919
A case of 39-year-old male with keratosis palmoplantaria nummularis was reported. The skin lesions were characterized by the presence of painful focal keratoses on the plantar pressure points. Biopsy of a keratotic plantar lesion revealed excessive hyperkerstosis, hypergranulosis, focal hypogranulosis, and acanthosis in the epidermis. We could observe aymptomatic relief of this patient who was treated with mixture of corticosteroid, 25% urea and 2.5% salicylic acid.
Adult
;
Biopsy
;
Epidermis
;
Humans
;
Keratosis*
;
Male
;
Salicylic Acid
;
Skin
;
Urea
2.Cementless Total Hip Arthroplasty with Circumferentially Proximal Porous-Coated Femoral Stem -Minimum 10-Year Follow-up Results.
Chang Dong HAN ; Jin PARK ; Dong Hoon LEE ; Ick Whan YANG
Journal of the Korean Hip Society 2006;18(4):139-145
Purpose: The results of a more than 10-year follow-up after total hip arthroplasties with circumferential and proximal porous-coated femoral stems were evaluated. Materials and Methods: Seventy-six patients (80 hips), who were operated on between Aug. 1991 and July 1994, were followed for more than 10 years after primary total hip arthroplasties using Multilock stems. The mean age at the time of the operations was 47.3 years old and the mean duration of follow-up was 12.3 years. The clinical results and radiological findings were evaluated. Results: The mean Harris hip scores improved from 54.7 points to 88.5 points at the time of the 10-year follow up. On the last follow-up radiograph, endosteal bone formation was observed in 70 hips (90%) and all femoral stems were biologically stable. Femoral osteolysis, which was linear in Gruen zone I and VII and mostly restricted to the proximal zones, was observed in 67 hips (84%), and no hip had distal osteolysis in the femur. There was no loosening, migration, or revisions of the stems. Conclusion: Total hip arthroplasties using circumferential and proximal porous coated Multilock femoral stems demonstrated stable osseous fixation and no distal osteolysis for a minimum 10-year follow-up; therefore, all stems were reported to have satisfactory outcomes. With improvement of cup design and liner wear, circumferential and proximal porous coating designs of femoral stems can be an alternative answer to mechanical failure due to aseptic loosening.
Arthroplasty
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Arthroplasty, Replacement, Hip*
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Femur
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Follow-Up Studies*
;
Hip
;
Humans
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Osteogenesis
;
Osteolysis
3.Complete Androgen Insensivity Syndrome in Sisters.
Do Hoon YANG ; Jung Min SIM ; Tae Hoon LEE ; Dong Ik KIM ; Sung Joo HONG ; Min Sung LEE
Korean Journal of Urology 2000;41(5):677-680
4.2 Cases of Prostatic Myosarcoma : Rhabdomyosarcoma andn Leiomyosarcoma.
Do Hoon YANG ; Tae Hoon LEE ; Dong Ik KIM ; Jung Min SIM ; Sung Joo HONG ; Min Sung LEE
Korean Journal of Urology 2000;41(11):1432-1436
No abstract available.
Leiomyosarcoma*
;
Myosarcoma*
;
Rhabdomyosarcoma*
5.Clinical Study on Chronic Granulomatous Disease(CGD) -Occurrence in Siblings-.
Yong Hoon JUN ; Sung Won YANG ; Dong Wook KIM ; Hoan Jong LEE ; Joong Gon KIM
Journal of the Korean Pediatric Society 1994;37(6):794-803
To analyse the age of onset, etiologic microorganisms, clinical manifestations, managements and genetic variation of chromic granulomatous disease, the authors reviewed four patients who were diagnosed as CGD at Department of Pediatrics, Seoul National Univesity Children's Hospital. They were siblings in relationship-two of them were brothers, the others were brother-sister. @ES The results were as follows; 1) Initial manifestations developed within 1 year old, and lymphadenopathy associated with BCG vaccination was the most common. 2) In culture study of micro-organism, catalase positive microorganisms such as Staphylococcus aureus, Serratia marcescens, Coagulase (-) Staphylococcus, Enterococcus, Proleus vulgaris, Klebsiella pneumoniae, E. coli and fungus such as Candida albicans were isolated. In 2 cases, culture study revealed no growth. 3) Fever, lymphadenopathy, hepatomegaly, suppurative dermatitis and pneumonia were the most common manifestations. In most of cases, antituberculous medications were administered under the impression of tuberculosis without response. 4) Immunologic screening tests including B-cell system, T-cell system, and complement system were within normal limit except NBT test. 5) In spite of severe infections, NBT scores of all the cases were less than those of controls. Liver biopsies of 3 cases showed granuloma formation with characteristic yellow brown pigment-laden macrophages.
Age of Onset
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B-Lymphocytes
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Biopsy
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Candida albicans
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Catalase
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Coagulase
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Complement System Proteins
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Dermatitis
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Enterococcus
;
Fever
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Fungi
;
Genetic Variation
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Granuloma
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Hepatomegaly
;
Humans
;
Klebsiella pneumoniae
;
Liver
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Lymphatic Diseases
;
Macrophages
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Mass Screening
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Mycobacterium bovis
;
Pediatrics
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Pneumonia
;
Seoul
;
Serratia marcescens
;
Siblings
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Staphylococcus
;
Staphylococcus aureus
;
T-Lymphocytes
;
Tuberculosis
;
Vaccination
6.CT characterization of bile duct dilatation: differential disgnosis of obstructive jaundice.
Jae Hoon LIM ; Yup YOON ; Young Tae KO ; Dong Ho LEE ; Ik YANG
Journal of the Korean Radiological Society 1992;28(4):601-608
Each Disease affecting the bile ducts tends to produce characteristic pattern of billiary dilatation: recurrent pyogenic cholangitis causes dilatation and straightening of the larger(central) intrahepatic ducts ; clonorchiasis causes dilatation of the smaller (peripheral) intraahepatic ducts; and carcinoma along the extrahepatic ducts causes (proportional) dilatation and tortuosity of both larger and smaller intrahepatic ducts. To evaluate the specificity of the pattern and morphology of the dilated biliary tree on CT scancs (CT characterization) three independent radiologists who were unfamiliar with the cases were asked to classify 62 CT scans in patients with obstructive jaundice. The case population consisted of 14 cases with recurrent pyogenic cholangitis, 18 cases with clonorchiasis and 30 cases with carcinoma along the extrahepatic ducts, which were intermixed randomly. Classification was made only on the basis of CT characterization: those scans showing primary lesions i.t., stone, aggregate of flukes, or tumor mass were excluded or masked. All the scans of every case showing the extrahepatic bile duct were masked. Radiologists correctly classified 54 of the 62 cases (87%): ten of the 14 patients with recurrent pyogenic cholangitis(71%), 17 of the 18 patients with clonorchiasis(94%) and 27 of the 30 patients with carcinoma along the extrahepatic bile cucts(90%). We believe that CT characterization of bile duct dilatation is useful in the differential diagnosis of obstructive jaundice, especially when a primary pathologic lesion is not depicted in CT scans.
Bile Ducts*
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Bile Ducts, Extrahepatic
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Bile*
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Biliary Tract
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Cholangitis
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Classification
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Clonorchiasis
;
Diagnosis, Differential
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Dilatation*
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Humans
;
Jaundice, Obstructive*
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Masks
;
Sensitivity and Specificity
;
Tomography, X-Ray Computed
;
Trematoda
7.Microleakage of the class V cavity according to restoration site and cavity size using SEM and three-dimensional reconstruction techniques.
Journal of Korean Academy of Conservative Dentistry 2005;30(2):112-120
This study was done to evaluate whether there were any differences in microleakage of class V composite restorations according to restoration site and cavity size. Total sixty-four restorations were made in molar teeth using Esthet-X. Small (2 x 2 x 1.5 mm) and large (4 x 2 x 1.5 mm) restorations were made at the buccal/lingual surface and the proximal surface each. After 1,000 times of thermocycling (5degrees C - 55degrees C), resin replica was made and the percentage of marginal gap to the whole periphery of the restoration was estimated from SEM evaluation. Thermocycled tooth was dye penetrated with 50% silver nitrate solution. After imbedding in an auto-curing resin, it was serially ground with a thickness of 0.25 mm. Volumetric microleakage was estimated after reconstructing three dimensionally. Two-way ANOVA and independent T-test for dye volume, Mann-Whitney U test for the percentage of marginal gap, Spearman's rho test for the relationship between two techniques were used. The results were as follows: 1. The site and size of the restoration affected on the microleakage of restoration. Namely, much more leakage was seen in the proximal and the large restorations rather than the buccal/lingual and the small restorations. 2. Close relationship was found between two techniques (Correlation coefficient = 0.614 / P = 0.000). Within the limits of this study, it was noted that proximal and the large restorations leaked more than buccal/lingual and the small restorations. Therefore, it should be strictly recommended large exposure of margins should be avoided by reducing unnecessary tooth reduction.
Molar
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Silver Nitrate
;
Tooth
8.Recent Advances in Understanding Colorectal Cancer and Dysplasia Related to Ulcerative Colitis.
The Korean Journal of Gastroenterology 2015;66(6):312-319
Ulcerative colitis is an idiopathic chronic inflammatory bowel disease and its incidence in Korea has rapidly increased over the past two decades. Since ulcerative colitis is associated with increased risk for colorectal cancer, annual or biannual colonoscopy with four quadrant random biopsies at every 10 cm segments has been recommended for surveillance of colitic cancer in patients with long standing left-sided or extensive colitis. Recent epidemiologic data and meta-analysis suggest that the increment of colorectal cancer risk in ulcerative colitis was not larger than that of previous studies. Moreover, in addition to the extent and duration of colitis, other risk factors such as family history of colorectal cancer, primary sclerosing cholangitis, stricture, pseudopolyps, and histologic severity of inflammation have been recognized. As a result, updated guidelines provide surveillance strategies adjusted to the individual patient's risk for colitic cancer. Regarding surveillance method, target biopsy under panchromoendoscopy is preferentially recommended rather than random biopsy.
Cholangitis, Sclerosing/complications
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Colitis, Ulcerative/*complications
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Colon/pathology
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Colorectal Neoplasms/epidemiology/*etiology
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Humans
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Inflammatory Bowel Diseases/complications
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Polyps
;
Risk Factors
9.Clinical characteristics in patients with biliary obstruction diagnosed by 99mTc-DISIDA scan: in 9 cases with normal ultrasonography findings.
Bong Chul PARK ; Soo hyun YANG ; Dong Ho CHE ; Sung Ki PARK ; Jong Hoon BYUN
Korean Journal of Nuclear Medicine 1992;26(1):82-85
No abstract available.
Humans
;
Technetium Tc 99m Disofenin*
;
Ultrasonography*
10.Questions About Sedation Protocols for Double-Balloon Enteroscopy.
Intestinal Research 2015;13(1):97-98
No abstract available.
Double-Balloon Enteroscopy*