1.Altered Integrin Expression Related to Anaplastic Transformation of Human Myeloma-Derived Cell Line.
Doo Hyun CHUNG ; Hyung Geun SONG
Korean Journal of Immunology 2000;22(2):65-69
No abstract available.
Cell Line*
;
Humans*
2.A Case of Malignant Acanthosis Nigricans Associated with Gastric Adenocarcinoma.
Hyung Geun PARK ; Seong Min PARK ; Doo Chan MOON ; Kyung Sool KWON ; Tae Ahn CHUNG
Korean Journal of Dermatology 1989;27(3):316-319
A 51-year-old female had disseminated, symmetrically distributed, brownish black pigmentation and papillary hypertrophy on the intertriginous and flexural areas for 6 months, and gastric adenocarcinoma was confirmed during the evaluation of internal malignancy, The cutaneous finding of acanthosis nigricans was a significant cutaneous marker of internal malignancy in this case.
Acanthosis Nigricans*
;
Adenocarcinoma*
;
Female
;
Humans
;
Hypertrophy
;
Middle Aged
;
Pigmentation
3.A Case of Generalized Granuloma Annulare.
Hyung Geun PARK ; Doo Chan MOON ; Kyung Sool KWON ; Tae Ahn CHUNG
Korean Journal of Dermatology 1989;27(3):299-303
We experienced a case of generalized granuloma annular e in a 68-year-old man. Many factors have been implicated in the genesis of this disease, but in this case no etiologic factors were identified. He was treated successfully with systemic corticosteroid for about l year.
Aged
;
Granuloma Annulare*
;
Granuloma*
;
Humans
4.Significance of Peanut Agglutinin in the Differentiation between Basal Cell Carcinoma and Trichoepithelioma.
Hyung Geun PARK ; Doo Chan MOON ; Kyung Sool KOWN ; Tae Ahn CHUNG
Korean Journal of Dermatology 1989;27(3):241-247
Great difficulty may be encountered in the differentiation of basal cell carcinoma from trichoepithelioma snd, in some cases, it may even be irnpossible. Immunohistochemical methods using peanut agglutinin(PNA) which is glycoprotein of non-immune origin selectively binding to galactose-N-acetyl-galactosa-mine are increasingly used in dermatopathology to improve the diagnosis and differential diagnosis. Using PNA, anti-PNA antibody, and peroxidase antiperoxi-dase(PAP) technique, normal skin specimens, basal cell carcinomas, trichoepitheliiomas, and a variety of different skin tumors were studied, and different PNA Ibinding sites between basal cell carcinomas and trichoepitheliomas were observed. The results were as follows : l. In normal skin, except the basement membrane, epidermis and hair follicle epithelium showed a cell membrane staining of PNA, which stained weakly in the Ibssal cell layer. Sebaceous glands revealed membranous and cytoplasmic staining of PNA, but sweat ducts and duct coi1s were mostly negative. 2. 34 of 36(94.4%) basal cell carcinoma sections demonstrated peritumorous PNA-positive bands, and none of 5 trichoepithelioma sections showed peritumorous PNA-binding. 3. Peritumorous PNA-positive bands were strongly positive in solid and keratotic basal cell carcinomas, but decreased or absent in the vicinity of the ulceration or the dense inflammatory infiltration. 4. None of the other skin tumors(squamous cell carcinoms, keratoscanthoma, Bowens disesse and actinic keratosis} showed a periturnorous PNA-positive band. Therefore, we believe that the PNA staining on paraffin-embedded sections using PAP technique can be a useful probe for the differentiation of basal cell carcinoma from trichoepithelioma.
Actins
;
Basement Membrane
;
Carcinoma, Basal Cell*
;
Cell Membrane
;
Cytoplasm
;
Diagnosis
;
Diagnosis, Differential
;
Epidermis
;
Epithelium
;
Glycoproteins
;
Hair Follicle
;
Peanut Agglutinin*
;
Peroxidase
;
Sebaceous Glands
;
Skin
;
Sweat
;
Ulcer
5.Secondary Biliary Cirrhosis in A Case with Intraductal Growth of Hepatocellular Carcinoma.
Hyung Geun SONG ; Yong Il KIM ; Chung Yong KIM ; Soo Tae KIM
Korean Journal of Pathology 1987;21(3):185-191
A case of hepatocellular carcinoma (HCC) complicating with secondary biliary cirrhosis due to intrahepatic bile duct growth of the tumor is presented. The patient was 34 years-old male who had been suffered from right upper quadrant pain with intermittent fluctuating jaundice for 4 months. Left lobectomy specimen contained a single, 4 cm sized, relatively well circumscribed and partly protruding nodular HCC in the medial seqment of left lobe. It compressed the left hepatic duct, and the intra and extra-hepatic ducts were completely plugged with tumor casts (extending to the common bile duct at the operating table). Remaining hepatic parenclyma was the seat of advanced secondary biliary cirrhosis in which were abundance of HBsAg-containing hepatocytes possibily representing a HBsAg carrier status. Biliary cirrhosis in HCC is an extremely rare manifestation, reflecting the delayed adequate clinical procedure by unusual pattern of obstructive jaundice. In such a case presenting as persisting and fluctuating obstructive jaundice in HCC, an intrabile duct tumor growth should be suspected.
Male
;
Humans
;
Carcinoma, Hepatocellular
6.Silver Sulfadiazineb Cream in the Treatment of Herpes Zoster.
Hyung Geun PARK ; Doo Chan MOON ; Kyung Sool KWON ; Tae Ahn CHUNG
Korean Journal of Dermatology 1988;26(3):377-382
Silver sulfadiazine, an antibacterial agent, has been used successfully in the praphylaxis and treatment of burn infection. 42 volunteers with herpes zoster were enrolled in a clinical trial to evaluate the effectiveness of topical silver sulfadiazine cream. 1% silver sulfadiazine cream was applied 4 times daily until crust removal and epithelialization on 21 patients. As the control, wet compress with 1: 5,000-1: 10,000 KMnO4 solution was done 4 times daily on 21 patients. ln treated group with silver sulfadiazine cream, the durations needed for marked reduction of erythema and edema of lesions, striking control of pain and burning sensation, complete drying of vesicles and crust formation, and crust removal and epithelialization were significantly decreased as compared to the control group. The rate of postherpetic neuralgia was also decreased markedly. The sooner the treatment began after the onset of symptoms, the more dramatic the response was. Signs of local or systemic side effects were not observed.
Burns
;
Edema
;
Erythema
;
Herpes Zoster*
;
Humans
;
Neuralgia, Postherpetic
;
Sensation
;
Silver Sulfadiazine
;
Silver*
;
Strikes, Employee
;
Volunteers
7.A Case of Familial Benign Chronic Pemphigus Improved with Oral Etretinate ( Tigason R ).
Hyung Geun PARK ; Doo Chan MOON ; Kyung Sool KWON ; Tae Ahn CHUNG
Korean Journal of Dermatology 1988;26(5):714-718
We report a case of familial benign chroinic pemphigus in a 47 year old man. We had tried various treatments but no effect had been noted with systemic steroids, tetracycline, cephalosporin, rifampin, dapsone, and local application with antibiotic ar..d eteroid ointment. Thus the patient was started on 50mg of etretinate(Tigason) daily and almost complete resolution of the skin lesions was noted two moths after treatment. He was maintained on 15mg of etretinate daily and follow up evaluations for six months revealed no recurrence and no exacerbation of the lesions.
Acitretin*
;
Dapsone
;
Etretinate*
;
Follow-Up Studies
;
Humans
;
Middle Aged
;
Moths
;
Pemphigus
;
Pemphigus, Benign Familial*
;
Recurrence
;
Rifampin
;
Skin
;
Steroids
;
Tetracycline
8.Survival of Stage IIB Osteosarcoma-Limb-Salvage vs Ampuration
Soo Yong LEE ; Jong Seok LEE ; Dae Geun JEON ; Hyung Ho OH ; Dong Hwan CHUNG
The Journal of the Korean Orthopaedic Association 1994;29(5):1341-1346
From Mar. 1985 to Dec. 1992, 170 cases of osteosarcoma, which were proved histologically were admitted in our department at least one time. Among them we analysed 89 cases of Ennekings stage IIB who took limb-salvage(54) or amputation(35) and followed our protocol, with non-randomized retrospective study. The average age of the 89 patiens was 17.0 years(7 to 57). Fifty-four cases of salvage group took neoadjuvant chemotherapy, 35 cases of amputation group took neoadjuvant or adjuvant chemotherapy. The result revealed prevalences of 2/54, 0/35 as to local recurrence; 15 of 54, 17 of 35 as to metastasis; 14 of 54, 15 of 35 as to death. Of the 2 patients who had a local recurrence, one died of metastasis and the other was lost follow up. According to Kaplan-Meier's plot 5-year continuously disease free survival rate for whole 89 cases of stage IIB was 43.1%, for salvage group 56.4%, for amputation group 34.0%. There were no signifcant difference in survival rate between salvage and amputation groups(p>0.05, by log-rank test). This result means the limb-salvage operation for Enneking's stage IIB osteosarcoma does not hinder patients survival.
Amputation
;
Chemotherapy, Adjuvant
;
Disease-Free Survival
;
Drug Therapy
;
Follow-Up Studies
;
Humans
;
Neoplasm Metastasis
;
Osteosarcoma
;
Prevalence
;
Recurrence
;
Retrospective Studies
;
Survival Rate
9.Tissue Responses Around Two Types of Dental Implant in Beagle Dog.
Hyung Geun CHUNG ; Young Hyuk KWON ; Man Sup LEE ; Joon Bong PARK
The Journal of the Korean Academy of Periodontology 1999;29(4):929-941
Three beagle dogs aged over one and half years were used in this study. All mandibular premolars were carefully extracted. Two AVANA implants(Sumin, Korea) and two 3i implants(Implant Innovation, USA) were installed at each right and left side respectively. Each dog was sacrificed at 4, 8. 12 weeks. Non-decalcified specimens were made and stained for a light microscopic study. The results were as follows; 1. Inflammation was not observed in the area of bone tissue adjacent to the implant body. 2. With time, quantity of osseointegration increased in each type of dental implant. There was no difference between AVANA implant and 3i implant. 3. Maturation of the bone around each type of the dental implant increased with time. 12 weeks after implant installation, the bone around dental implant represented compact bone-like appreance. 4. In case implants were located adjacent to a root, newly-formed periodontal ligament tissue was observed around the implant. And the direction of the periodontal ligament fiber was parallel to the surface of the implant. Within the results of this study, AVANA implants represented similar osseointegration in comparision with 3i implants.
Dogs
;
Animals
10.Primary Osteosarcoma of the Sphenoid Bone: Case Report.
Geun Jin YANG ; Mun Chul KIM ; Hoon CHUNG ; Sang Pyung LEE ; Gi Hwan CHOI ; Hyung Tae YEO
Journal of Korean Neurosurgical Society 2000;29(5):680-683
No abstract available.
Osteosarcoma*
;
Sphenoid Bone*