1.Benign Tumors of the Eye and its Adnexa.
Seung In BAK ; Song Hee LEE ; Byung Guk BAK
Journal of the Korean Ophthalmological Society 1978;19(3):333-339
The authors reported clinical review of 85 cases of benign tumors of the eye and its adnexa diagnosed histopathologically for last 15 years at Department of Ophthalmology, Busan National University Hospital. The followings were summarized. 1. The occurence of benign tumors of the eye and its adnexa by age was frequent under 3rd decade but no sexual differences were found. 2. The benign tumors in the eye and its adnexa were frequently involved eye lids (33 cases, 38.8%), orbit (25 cases, 29.4%) and conjunctiva (19 cases, 22.4%) in erder. 3. The frequency of occurence of benign tumors in the eye and its adnexa was dermoid cyst (18 cases, 21.2%), hemangioma (12 cases, 14.1%), cysticercosis and nevus (9 cases, 10.6% in each) and pseudotumor (5 cases, 5.9 %) in order. In addition, 3 rare benign tumors in the ocular adnexa, such as an epibulbar osseous choristoma in the subconjunctiva, a benign mixed tumor originated from medial canthal eccrine gland and hemangioendothelioma located in the eye lid were presented.
Busan
;
Choristoma
;
Conjunctiva
;
Cysticercosis
;
Dermoid Cyst
;
Eccrine Glands
;
Hemangioendothelioma
;
Hemangioma
;
Nevus
;
Ophthalmology
;
Orbit
2.Ultrasonograms in the Ocular and Orbital Diseases.
Seung In BAK ; Song Hee LEE ; Byung Guk BAK
Journal of the Korean Ophthalmological Society 1979;20(1):73-81
Ultrasonograms were obtained from 27 cases of intraocular and 10 cases of orbital diseases with S.K.L containing a general transducer(A-mode), 1~3 MHz in its frequency and 15mm in its diameter. The authors summerized that these ultrasonograms would provide some benefits in supplementary clinical diagnosis, especially in confirming the presence of intraocular tumors, differential diagnosis of primary and secondary retinal detachment and deciding the location and surgical procedure preoperatively in the orbital tumors.
Diagnosis
;
Diagnosis, Differential
;
Orbit*
;
Orbital Diseases*
;
Retinal Detachment
;
Ultrasonography*
3.Electrocardiographic Changes in CVA Patients According to its Location and Etiology.
Soon Bu HWANG ; Seung Ho CHO ; Young Bae LEE ; Young Bak KOH ; Yung LEE ; Kyo Myung KIM
Korean Circulation Journal 1981;11(2):27-35
Patients with cerebrovascular accidents often have abnormal electrocardiograms in the absence of known organic heart disease. In 1901 harvey Cushing has discovered sinus bradycardia in CVA patients. Burch, Myers and Abildskov were the first to report electrocardiographic abnormalities in CVA. Since then many reports have appeared in the literature. This study was done utilizing brain C-T scan to varify and localize the site of CVA, for purposes of correlation of the CVA with abnormalities of electrocardiogram. We obtained the following results. 1. Among 250 cases of CVA, 107 cases were excluded due to pre-existing cardiac disease, abnormal serum electrolyte and early death. 2. Among 143 cases, intracranial hemorrhage were 62.9% and brain infarction were 37.1%. 3. In intracranial hemorrhage, normal electrocardiographic finding were only 4.5%. Q-Tc prolongation revealed 64.5%. 4. In brain infarction, normal electrocardiographic finding was only 5.7%. Q-Tc prologation revealed 64%.
Bradycardia
;
Brain
;
Brain Infarction
;
Electrocardiography*
;
Heart Diseases
;
Humans
;
Intracranial Hemorrhages
;
Stroke
4.Gastrointestinal impaction by Parascaris equorum in a Thoroughbred foal in Jeju, Korea.
Seung Ho RYU ; Jong Duck JANG ; Ung Bok BAK ; Chang Woo LEE ; Hee Jeong YOUN ; Yonghoon Lyon LEE
Journal of Veterinary Science 2004;5(2):181-182
A weanling Thoroughbred foal was admitted to Equine Hospital, Korea Racing Association with signs of colic. On admission the foal was sweating profusely, appeared anxious and exhibiting signs suggestive of abdominal pain. Clinical examination revealed: tachycardia (90 beats/min), tachypnea (50 breaths/min) and congested and slightly cyanotic mucous membranes. No intestinal sounds were auscultated in all 4 abdominal quadrants. Rectal palpation identified concurrent cecum and large colon impactions. Treatment consisted of intravenous administration of a balanced electrolyte solution, nasogastric siphonage and administration of analgesics. Nasogastric reflux contained ascarids. This treatment failed to alleviate the signs of colic. The foal died 3 hours later following discharge because the owner didn't want laparatomy because of economic constraints. Prior to admission this foal had not received any prophylactic anthelmintic treatment. In necropsy, there were masses of ascarids accumulation in the stomach, small intestine and large intestine. The outcome of this report is to describe the first diagnosed case of gastrointestinal impaction by P. equorum in a Thoroughbred foal in South Korea and indicates the importance of regular anthelmintic treatment.
Animals
;
Ascaridida Infections/diagnosis/parasitology/*veterinary
;
Ascaridoidea/*isolation&purification
;
Fatal Outcome
;
Fecal Impaction/diagnosis/parasitology/*veterinary
;
Horse Diseases/diagnosis/*parasitology
;
Horses
;
Intestinal Diseases, Parasitic/diagnosis/parasitology/*veterinary
;
Korea
5.Dose-Related Effects of Steroid on the Experimental Arthritis in Rabbits.
Joon Yong BAK ; Jae Seung KIM ; Bong Hee KIM ; Ji Ho LEE ; Kyung Hoi AHN
Journal of the Korean Academy of Rehabilitation Medicine 2001;25(2):284-289
OBJECTIVE: To investigate dose-related effects of repeated intraarticular steroid injection on the experimental arthritis. METHOD: Twenty-four adult male rabbits received Zymosan A into their right knee joint for experimental arthritis. After a week, they were injected with 2 mg (group I; n=9), 10 mg (group II; n=7) or 20 mg (group III; n=8) triamcinolone acetonide into their right knee weekly interval for 4 weeks. We measured weekly changes of the weight and the mediolateral diameter of both knees for the calculation of edema index. 99mTechnetium pertechnate (99mTc) uptake measurement were performed before the first steroid injection and a week after the final steroid injection. All rabbits were sacrificed and histologic examinations of their proximal tibia were performed. RESULTS: A progressive weight loss and changes of edema index were evident for all rabbits (p<0.05) and difference among the groups was not found (p<0.05). 99mTc uptake significantly decreased after the steroid injection in group I (p<0.05) but it was not profound in others (p>0.05). In the histological findings, fibrillation-frayings and fissures of the surface were similar in all rabbits, but loss of nuclear stains and cyst formations were increased prominently in group III than group I (p<0.05). CONCLUSION: Low-dose repeated steroid intraarticular injections are safe and effective treatment in arthritis though no definite evidence of chondroprotection, and high-dose steroid injections accelerate degeneration of the arthritic cartilage.
Adult
;
Arthritis*
;
Cartilage
;
Coloring Agents
;
Edema
;
Humans
;
Injections, Intra-Articular
;
Knee
;
Knee Joint
;
Male
;
Rabbits*
;
Tibia
;
Triamcinolone Acetonide
;
Weight Loss
;
Zymosan
6.The Effects of Testosterone on Skin Barrier.
Hana BAK ; Eung Ho CHOI ; Kwang Gil LEE ; Seung Phil HONG ; Seung Hun LEE ; Sung Ku AHN
Korean Journal of Dermatology 2005;43(2):167-176
BACKGROUND: Although there are no known gender-related differences in permeability barrier function in adults, estrogen accelerates whereas testosterone retards barrier development in fetal skin. However, there have been few studies concerning the effects of testosterone on the skin barrier. OBJECT: We evaluated the effects and mechanisms of testosterone on the skin barrier. METHODS: In this experiment, hairless mice were divided into three groups; sham-operated, castrated and testosterone-replacement castrated group. Testosterone was administered subcutaneously once a day for 7 days. We performed a skin biopsy at 7 days and performed hematoxyline-eosin staining, calcium-ion capture cytometry and the immunohistochemical examination of involucrin, loricrin, filaggrin and proliferating cell nuclear antigen (PCNA). The specimens were prepared for electron microscopy using RuO4 and OsO4 postfixation. RESULTS: The results were summarized as follows 1. Light microscopic findings of the testosterone-replacement castrated group showed apparent hyperkeratosis and acanthosis, not present in the sham-operated and castrated group. 2. Whereas the expression of involucrin, loricrin and filaggrin of immunohistochemical staining and in situ hybridization of the sham-operated and castrated group were normal, it was abnormal in the testosterone-replacement castrated group. 3. Labelling indices for PCNA in the sham-operated and castrated group were not statistically different, but the testosterone-replacement castrated group showed a marked increase of PCNA labeling index. 4. Wherease the calcium gradient was normal in the sham-operated and castrated group, it was distorted in the testosterone-replacement castrated group. Calcium deposition was increased through all layers of the epidermis and the calcium gradient disappeared in the testosterone-replacement castrated group. 5. Normal looking membrane structure was observed in the sham-operated and castrated group, but a membrane structure which appeared fragmented, incomplete lipid bilayer structures and prominent dilatation of lacunar domains were observed only in the testosterone-replacement castrated group. CONCLUSION: From the above results, it is concluded that there is a functional alteration of the epidermal barrier induced by testosterone, including the formation of an abnormal cornified envelope and also incomplete lipid synthesis.
Adult
;
Animals
;
Biopsy
;
Calcium
;
Dilatation
;
Epidermis
;
Estrogens
;
Humans
;
In Situ Hybridization
;
Lipid Bilayers
;
Membranes
;
Mice
;
Mice, Hairless
;
Microscopy, Electron
;
Permeability
;
Proliferating Cell Nuclear Antigen
;
Skin*
;
Testosterone*
7.A Case of Primary Intestinal Lymphangiectasia Diagnosed by Double Balloon Enteroscopy.
Jung Min LEE ; Jong Bum KIM ; Seung Wook BAK ; Bong Kyu LEE ; Nam Hun LEE ; Young Ho SEO
Intestinal Research 2013;11(1):66-70
Primary intestinal lymphangiectasia is a congenital lymphatic disorder characterized by dilated intestinal lacteals resulting in lymph leakage into the small bowel lumen and responsible for protein losing enteropathy. As a result, generalized edema, hypoalbuminemia, and lymphocytopenia are clinically manifested. We could not find the reason by several examinations. Therefore, we performed double balloon enteroscopy (DBE), and intestnal lymphangiectasia was diagnosed histologically by a biopsy. DBE is a safe and effective method to diagnose small bowel lymphangiectasia. We report a case of primary intestinal lymphangiectasia, which occurred in a 54-year-old male patient with generalized edema and ascites.
Ascites
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Biopsy
;
Double-Balloon Enteroscopy
;
Edema
;
Humans
;
Hypoalbuminemia
;
Lymphopenia
;
Male
;
Protein-Losing Enteropathies
8.The Effect of Cold on the Skin Barrier.
Minjeong KIM ; Hana BAK ; Sanghoon LEE ; Seung Hun LEE ; Sung Ku AHN
Korean Journal of Dermatology 2008;46(4):437-445
BACKGROUND: Cold is considered an important environmental factor on the skin's barrier function. It is also known that cold can disrupt the barrier's permeability function. Historically irritant contact dermatitis develops frequently amongst fish processing workers. This means that cold may disrupt the skin barrier function. However, there are only a few studies of the effect of cold on the skin barrier. OBJECTIVE: The aim of our study was to investigate the effects of exposure to the cold on the skin's barrier permeability, calcium gradient and cornified enveloped proteins. METHODS: Hairless mice were classified into four groups as follows; tape-stripping and exposure to cold (4degrees C) for 5 hours group (Group 1), exposure to cold (4degrees C) for 5 hours after tape-stripping and occlusion with Gore-Tex group (Group 2), exposure to cold (4degrees C) for 5 hours after tape-stripping and applying with petrolatum group (Group 3), and tape-stripping and exposure at room temperature (25degrees C) for 5 hours group (Group 4). Next, rate of barrier recovery was measured, and skin of cold exposure site was taken for immunohistochemistry of cornified enveloped protein, calcium inon capture chemistry and in situ hybridization. RESULTS: Rate of barrier recovery of Group 1 was measured at -56.33%, the most delayed rate of all groups. Rate of barrier recovery of other groups were measured as follows; Group 2 (20%), Group 3 (55%) and Group 4 (41.78%). In calcium-ion capture cytochemistry, Group 1 appeared to absent calcium deposit in the entire epidermis. Group 3 appeared to the highest density of calcium in entire epidermis. In immunohistochemical staining of cornified enveloped proteins including involucrin, loricrin and filaggrin, Group 1 resulted in the lowest expression of cornified enveloped proteins. Of all groups, Group 3 appeared to have the highest expressionof cornified enveloped proteins. In situ hybridization of loricrin and filaggrin, expression were similar with results of immunohistochemical staining. CONCLUSION: Our results provide that cold impairs the skin's barrier permeability by having a negative effect on recovery of calcium gradient and differentiation of cornifed enveloped proteins. But occlusion with vapor permeable membranes such as Gore-Tex or petrolatum could improve conditions of skin barrier impaired by cold by restoring the recovery rate of calcium gradient and differentiation of cornified enveloped protein.
Animals
;
Calcium
;
Cold Temperature
;
Dermatitis, Contact
;
Epidermis
;
Histocytochemistry
;
Immunohistochemistry
;
In Situ Hybridization
;
Intermediate Filament Proteins
;
Membrane Proteins
;
Membranes
;
Mice
;
Mice, Hairless
;
Permeability
;
Petrolatum
;
Polytetrafluoroethylene
;
Protein Precursors
;
Proteins
;
Skin
9.The Effect of High Dose Systemic Steroid and its Long-term Usage on the Skin Barrier of Hairless Mice.
Jin Wook LEE ; Hana BAK ; Sung Ku AHN ; Eung Ho CHOI ; Seung Hun LEE
Korean Journal of Dermatology 2004;42(3):281-289
BACKGROUND: Prolonged exposure of topical and systemic corticosteroid to skin can result in well-recognized cutaneous abnormalities including cutaneous atrophy, easy bruisibility, increased skin fragility, and increased risk of infection. Skin barrier impairment is also reported as a steroid-induced side effect. A major function of the skin is the formation of a permeability barrier between the external milieu and the organism. Recent studies have shown that chronic corticosteroid negatively impacts epidermal barrier function. As well as this topical corticosteroid not only has antiproliferative actions but also inhibits the differentiation of the epidermis, resulting in structural defects in the epidermis. OBJECT: We wanted to determine whether high dose systemic steroid injection would display adverse effects, specifically on; epidermal functions, permeability barrier homeostasis and stratum corneum integrity and cohesion. The basis for such changes was also to be determined. MATERIAL AND METHODS: Systemic steroid was administered by injecting each hairless mouse, 8-10 week of age, intraperitoneally with 0.3 mg triamcinolone acetonide, two times per week for five weeks. For the controlled hairless mice, 0.9% normal saline was administered by the same method of injection. Every week, transepidermal water loss (TEWL) was checked and skin biopsies were taken. Skin specimens were prepared for electron microscopy using both 0.25% ruthenium tetroxide and 4% osmium tetroxide postfixation. For light microscopy staining hematoxylin-eosin and ion capture cytochemistry was used. RESULTS: The results were as follows; 1. From about 1 week onwards, high dose systemic steroid usage produced visible cutaneous changes and significantly increased the TEWL in the group of 0.3 mg triamcinolone acetate injected hairless mice compared with the control. 2. Light microscopic observations of the steroid-injected hairless mice showed gradual thinning of the epidermis from about 2 weeks onwards, compared with the control. Loss of stratum corneum was also observed in the steroid injected hairless mice. 3. The ruthenium tetroxide staining of high dose systemic steroid treated specimens revealed that the lipid bilayer was impaired and fragmented from about 3 weeks. Intercellular spaces were widened and the lipid bilayer either disappeared or showed damage when compared with the control. 4. From about 3weeks onwards. electron microscopic studies revealed, not only a marked decrease in the number of lamellar bodies, but also an abnormal transformation of lamellar bodies in the steroid injected hairless mice compared with the control. 5. Throughout the five weeks, the calcium gradient gradually disappeared in the 0.3mg triamcinolone injected hairless mice compared with the control. Consequently, high dose systemic steroid use results in barrier dysfunction and morphological abnormalities.
Animals
;
Atrophy
;
Biopsy
;
Calcium
;
Epidermis
;
Extracellular Space
;
Histocytochemistry
;
Homeostasis
;
Lipid Bilayers
;
Mice
;
Mice, Hairless*
;
Microscopy
;
Microscopy, Electron
;
Osmium Tetroxide
;
Permeability
;
Ruthenium
;
Skin*
;
Triamcinolone
;
Triamcinolone Acetonide
10.Cholelithiasis associated with recurrent colic in a Thoroughbred mare.
Seung Ho RYU ; Ung Bok BAK ; Chang Woo LEE ; Yonghoon Lyon LEE
Journal of Veterinary Science 2004;5(1):79-82
A 13-year-old Thoroughbred mare, retired from race, was admitted to Equine Hospital, Korea Racing Association with signs of colic. One and a half months following the previous treatment (second time) and 11 days following her previous discharge (third time), the mare repeatedly exhibited signs of colic and finally along with icteric eyes. Routine medical treatment with intravenous fluids, analgesics resulted in resolution of signs of colic in the first and second admission. The condition of the mare did not improve in the third admission despite over one month supportive treatment and she was subject to euthanasia at the request of the owner on the thirtyeighth day of hospitalization (95 days from her first admission). The clinical signs (fever, icterus, mild intermittent colic) in conjunction with clinical laboratory findings (leukocytosis, elevations of serum total bilirubin, direct bilirubin, alkaline phosphatase, aspartate aminotransferase, gamma glutamyl transferase, creatine phosphokinase, lactic dehydrogenase and blood fibrinogen indicative of obstructive biliary disease) in this mare suggested possible chlolelithiasis. However, liver enzymes and bilirubin estimations are often not part of routine screening in emergency colic cases. At necropsy, multiple dark brown choleliths of various sizes obstructing hepatopancreatic ampulla were found in the hepatic duct. The choleliths were found as large as 3-5 cm in diameter, faceted to each other, dark brown in color and showed soap consistency. Histopathologic findings revealed: biliary fibrosis, plugging of the bile canaliculi with bile pigments, cholangiohepatitis and pigmentation of the hepatic lymph node with bile pigment laden macrophages. Although definitive diagnosis of cholelithiasis might be challenging, clinicians should consider this condition in the differential diagnosis of recurrent colic.
Animals
;
Cholelithiasis/complications/pathology/*veterinary
;
Colic/complications/pathology/therapy/*veterinary
;
Fatal Outcome
;
Female
;
Horse Diseases/*pathology
;
Horses