1.Cholesteatoma of the Renal Pelvis: A case report.
Nam Hoon KIM ; Young Chun MOON ; Moon Hyang PARK
Korean Journal of Pathology 1995;29(5):691-693
Cholesteatoma in the kidney and ureter are accumulations of waxy, gray flakes of keratin materials, secondary to squamous metaplasia of the transitional epithelium. Herein, we describe a case of cholesteatoma in the renal pelvis of a 69-year-old woman, and give a brief review of the literature. In the upper pole of the left kidney was a 6 cm cystic lesion filled with a thick, flaky, grayish, comified material. Microscopically, the cystic area showed calyceal and pelvic structures being replaced by keratinizing stratified squamous epithelium. The surrounding renal parenchyma was atrophic with features of chronic pyelonephritis.
Female
;
Humans
2.Influence of Sleep Stages on Esophago-upper Esophageal Sphincter Contractile Reflex and Secondary Esophageal Peristalsis.
Bora KEUM ; Sanghoon PARK ; Hoon Jai CHUN
The Korean Journal of Gastroenterology 2006;48(4):292-293
No abstract availble.
3.The Study of Cell Killing Mechanism by Membrane Attack Complexes of Complement in the Nucleated Cells.
Sang Ho KIM ; Sung Hak PARK ; Myung Hoon CHUN
Korean Journal of Pathology 1992;26(3):253-269
The mechanism of cytolysis by complement attack of nucleated cells(NC) is of special interest in comparison to that of red blood cells. It is known that NC death by membrane attack comples, C5b-9, is caused by many factors, i.e., efficiency of complex assembly, activation of intrinsic metabolic pathway by signal transduction, cytotoxic effect of the channel itself and natural repair ability. These factors suggest that colloid osmotic lysis, known in red blood cells, does not fully explain the complement-mediated cell death of NC. In this study, the authors investigated correlation between biochemical and morphological changes to prove "Ca2+-mediated metabolic death"8~13) representing a mechanism of NC death caused by C5b-9 attack. The L1210 cells, mouse leukemic cell line carrying small complement channel(TAC5b-91) were used in the experiments. The amounts of intracellular adenine nucleotides to extracellular Ca2+, ouabain, KC1 and dextran were analyzed by bioluminescence method using luminometer. Cell viability was checked by 0.4% trypan blue dye and LDH release. Morphological observation of TAC5b-91 was done by immunocytochemical staining and electron microscope. The results were as follows: 1) The release of ATP, ADP and AMP followed by cell death was rapid and progressive along the incubation time at 37 degrees C and it was accelerated in 1.5 mM of [Ca2+]0. 2) There was no evidence of ATP repairment in the TAC5b-91. 3) Extracellular KC1(150 mM), dextran(0.66 mM) and ATP supplement(0.2 microM) could not effectively inhibit ATP depletion and cell death. Ouabain(27 and 100 microM) enhanced cell death and could not completely prevent ATP loss. 4) Most of the mitochondria showed swelling, loss of cristae and Ca2+ deposit in matrix in the electron microscopic observation. Rapid, sustained and irreversible depletion of adenine nucleotides was due to Ca2+ deposit with destruction of mitochondria and also the leakage through transmembrane channels. Moreover this energy depletion was accelerated by high extracellular Ca2+ concentration. These results indicate that Ca2+-mediated, energy exhaustion is one of the mechanisms of the metabolic cell death by C5b-9 attack of NC.
Mice
;
Animals
4.A case of pleomorphic adenoma and a case of neurilemmoma in parapharyngeal space.
Hea Jun HONG ; Young Myoung CHUN ; Byung Hoon PARK
Korean Journal of Otolaryngology - Head and Neck Surgery 1991;34(5):1083-1088
No abstract available.
Adenoma, Pleomorphic*
;
Neurilemmoma*
5.Two cases of Avellis' syndrome.
Hang PARK ; Seok Gyeng HONG ; Hoon KIM ; Chun Gil KIM
Korean Journal of Otolaryngology - Head and Neck Surgery 1992;35(6):936-939
No abstract available.
6.A Case of Nonischemic Central Retinal Vein Occlusion Developed in the course of Ulcerative Colits.
Jin Hai HYUN ; Dong Hoon KANG ; Myung Kyu PARK ; Hoon Jai CHUN
Korean Journal of Gastrointestinal Endoscopy 1994;14(2):202-206
Ulcerative colitis is a chronic, inflammatory disease of colon which is rare in Korea. In the course of ulcerative colitis numerous extraintestinal complication may develop on the joints, skin, liver, kidney, vessel, oral cavity and eyes. The most common ocular lesions complicated in patients with ulcerative colitis are episcleritis and iritis. And the cases of retinal vascular disease in associated with ulcerative colitis are extremely rare. We experienced nonischemic central retinal vein occlusion complicated in a patient with ulcerative colitis, who is 32-year-old male and complained decreased visual acuity and metamorphosis.
Adult
;
Colitis, Ulcerative
;
Colon
;
Humans
;
Iritis
;
Joints
;
Kidney
;
Korea
;
Liver
;
Male
;
Mouth
;
Retinal Vein*
;
Retinaldehyde
;
Scleritis
;
Skin
;
Ulcer*
;
Vascular Diseases
;
Visual Acuity
7.The Role of the Cytokines (IL-12, IFN-gamma) in the Generalized Shwartzman Reaction Induced by Vibrio Vulnificus Cytolysin.
Seok Don PARK ; Dong Lim KIM ; Sang Won LEE ; Jae Hoon CHUN ; Seung Hoon CHA
Korean Journal of Dermatology 2000;38(5):622-628
No Abstract Available.
Cytokines*
;
Perforin*
;
Shwartzman Phenomenon*
;
Vibrio vulnificus*
;
Vibrio*
8.A Case of Eosinophilic Pustular Folliculitis.
Jae Hoon CHUN ; Nyung Hoon YOON ; Jae Hoon PARK ; Seung Hoon CHA ; Seok Don PARK
Korean Journal of Dermatology 2000;38(11):1512-1516
Eosinophilic pustular folliculitis(EPF) is characterized by recurrent crops of pruritic follicular papules and pustules that occur mainly on the face, trunk, and extremities. Histologically, the major distinguishing feature is abundant eosinophils that invade sebaceous glands and outer root sheaths of hair follicles. We herein report a typical case of eosinophilic pustular folliculitis for promoting research of this rare disease.
Eosinophils*
;
Extremities
;
Folliculitis*
;
Hair Follicle
;
Rare Diseases
;
Sebaceous Glands
9.Finger-Tip Unit in Korean Adults and It's Clinical Application According to Anatomical Sites.
Jae Hoon CHUN ; Sang Won JEONG ; Jae Hoon PARK ; Seung Hoon CHA ; Seok Don PARK
Korean Journal of Dermatology 2000;38(12):1624-1629
BACKGROUND: Dermatologic patients need advice on how much ointment or cream to apply, in particular topical corticosteroids. The instructions given to patients concerning topical therapy are frequently vague. OBJECTIVE: The aims of this study are to make simple guidelines on the topical application of ointments or creams for patients, parents, doctors and nurses, and to check the accuracy of these guidelines in practice. METHODS: The average height and weight according to the different age groups and sex were measured from Korean standard growth and developement chart. From this chart, their total body surface areas(BSA) were calculated using a standard nomogram. The length of the tips of their index fingers was measured; measuring from the distal skin-crease to the end of the finger. One finger-tip unit(FTU) was defined as the amount of ointment expressed from a tube nozzle with a 5 mm in diameter, covering from the distal skin-crease to the tip of the palmar aspect of the index finger. The average area of abdominal skin covered by one finger-tip unit, and that of one palm were measured by computer scanner(Hurapack scanner, 4C) and image analyzed program(Image Pro. Plus(R) V. 3.0, Micromedical). Each patient then placed his or her right hand lightly, palm side down with the fingers and thumb closed, onto Hurapack scanner 4C. A tracing of the outer edge of the hand was made from the ulnar to radial styloid by photoshop program. The outlined area and enclosed area were measured by an image analyzer. RESULTS: 1. The average length of each finger-tip was 2.48+/-0.2cm in males and 2.24+/-0.13cm in females. 2. The average weight of one FTU was 0.46+/-0.03g in males and 0.40+/-0.02g in females. 3. The average area of palm was 145+/-12.4cm2 in males and 115.9+/-10.1cm2 in females. 4. The average area of abdominal skin covered by one FTU was 278+/-34.4cm2; The average area was 303+/-24.3cm2 in males and 253+/-21.9cm2 in females. 5. The number of FTU of adult male required to treat various anatomical sites was : face and neck, 2.6; trunk and buttock, 10.5; arm and hand, 5; leg and foot, 10. The number of FTU of adult female was : face and neck, 2.8; trunk and buttock, 11; arm and hand, 5.5; leg and foot 11. 6. The number of FTU of children required to treat each anatomical site was variable because of differential growth according to different age. CONCLUSION: The concept of FTU provides convenient means of rapidly assessing the approximate amount of ointment or cream required for the treatment of patients.
Adrenal Cortex Hormones
;
Adult*
;
Arm
;
Buttocks
;
Child
;
Female
;
Fingers
;
Foot
;
Hand
;
Humans
;
Leg
;
Male
;
Neck
;
Nomograms
;
Ointments
;
Parents
;
Skin
;
Thumb
10.Clinical Evaluation of Congenital Stapedial Anomalies.
Keehyun PARK ; Hong Joon PARK ; Dong Hoon LEE ; Sang Hoon CHUN ; Jung Hoon OH
Korean Journal of Otolaryngology - Head and Neck Surgery 1998;41(12):1545-1549
BACKGROUND AND OBJECTIVES: A nonprogressive and conductive hearing loss in the range of 40 to 60 dB with normal tympanic membrane is highly suggestive of a congenital ossicular malformation. Among the ossicular anomalies, congenital stapedial anomaly is most common, and it is clinically important because hearing loss can be corrected by appropriate procedure. In this study, we attempted to describe patterns of stapes anomalies encountered in patients who have a normal ear drum. We also analysed the surgical result with special reference to the patterns of stapes anomaly. MATERIALS AND METHODS: We experienced 17 cases (20 ears) of congenital stapedial anomalies which were confirmed through the explo-tympanotomy at Ajou University Hospital between June 1994 and March 1997. The preoperative and postoperative audiologic findings, operative findings and CT findings were analysed. RESULT: There were 5 types of stapes anomalies with 7 anomalous patterns among which stapes footplate fixation was the most common anomaly. We could get 78.9% of hearing improvement after ossiculoplasty with several prosthesis. CONCLUSION: Stapes footplate fixation was usually bilateral, while partial stapes anomalies or anomalies associated with incus anomaly was usually unilateral. The surgical result of stapes anomaly was good.
Ear
;
Hearing
;
Hearing Loss
;
Hearing Loss, Conductive
;
Humans
;
Incus
;
Prostheses and Implants
;
Stapes
;
Tympanic Membrane