1.A Study on the Minimal Phototoxic Dose (MPD).
Yoon Seong KIM ; Jang Kyu PARK
Korean Journal of Dermatology 1986;24(1):16-21
In order to measure the MPD with 8-methoxypsoralen, we selected 49 Korean healthy male vlunteers without phototoxic or photosensitive dermatoses. They were divided to 3 groups (Immediate; group 1, 1 hour; group 2, 2 hours', group 3) according to the waiting time, intervals of application of photosensitizer a,nd UVA:irradiation. The reaults were summarized as follows: 1. MPDs of group 1 had no clinical significance. 2, MPDs of group 2 were more than those of group '3 independently of application methods of photosensitizer. 3. In the cases of topical application of 8-MOP, MPDs of group 3 according to reading interval (24 hours, 48 hours and 72 hours after UVA irradiation) were 3.4+/-2.9 J/cm2, 1.9+/-l.5 J/cm' and l. 7+1, 2/cm, respectively. 4 In the cases of oral administration of 8-MOP, MPDs of group 3 according to reading; interval as topical application of 8-MOP were 7.1+/-2.3 J/cm, 4.4+/-1.1 J/ cm2 and 4.2+/-l.2 J/cm2, respectively. 5 MPL)s accarding to the skin types as follows; (waiting time; 2 hours, read- ing interval; 48 hours) a. In the case of topical application of 8-MOP, MPDs of the skin type ]II, 1V and V were 0.9+/-0.5 J/cm2, 1.8+/-1.1 J/cm2 and 3.0+/-l.3 J/cm2 respectively. b. In the case of oral administration of 8-MOP, MPDs of skin type g, W and were 3.5+/-1.1 J/cm2, 4.7+/-1.3 J/cm2 and 6.9+/-l.8 J/cm2, respectively.
Administration, Oral
;
Humans
;
Male
;
Methoxsalen
;
Skin
;
Skin Diseases
2.A Case of Pityriasis Lichenoides et Varioliformis Acuta Treated with Photochemotherapy.
Yoon Seong KIM ; Hyo Soo HAN ; Jang Kyu PARK
Korean Journal of Dermatology 1986;24(1):107-111
A lg year-old female patient with pityriasis lichenoides et varioliforrnis acuta (PLEVA) was been treated with PUVA, At first, she was treated with tetracycline for 8 weeks with improvement somewhat. But 2 months later, her skin lesions aggravated slowly. So, we tried to treated her with PUVA and then she was cleared completely. The initial dose of UVA was 5 J/cm The UVA dosage increased by 10g of the previous exposure and increased to the maximum dose, 15 J/cm The patient exposed to UVA R times per week. 12 times after the PUVA therapy, the skin lesions begin to improve and completely improved at 21 times of Pl.JVA therapy. She was followed up every week and there was no side effect except hyperpigrnentation till 24 months. The total dose during treatment is 210 J/cm.
Female
;
Humans
;
Photochemotherapy*
;
Pityriasis Lichenoides*
;
Pityriasis*
;
PUVA Therapy
;
Skin
;
Tetracycline
3.Cyto - molecular Biologic Characterization of c - myc , erb B and EGF - Receptor in Squamous Cell Carcinoma.
Kyu Suk LEE ; Yoon Yae CHOI ; Joon Young SONG ; In Jang CHOI ; Sung Ik JANG ; Won Ki BAEK ; Min Ho SUH
Korean Journal of Dermatology 1994;32(2):223-233
BACKGROUND: Oncogenes and EGF-Receptor(EGFR) may be involved n different stages of the multistep carcinogenesis process. A specific pattern of karyotypic abnormalities in solid tumors can be detected by cytogenetic methods. OBJECTIVE: This study is intnded to observe the cytomolecular kiologic chracterization of c-myc, erb B and EGFR genes in squasnous cell carcinoma(SCC) of the skin and cervix. METHODS: We have eytogenet,ically examined the short-term culturs from SCC. The rearrangement, amplification or expressi.on of erb B, c-myc, and EGFR genes were studied by Southern blot, analysis of genomic DNA and by slot blot analysis of tota! RNA extracted from biopsies of normal skin and SCC tissues. EGFR expression was examined immunohistochemially using monoclonal antibodies and the localizat,ion of the c-myc oncogene mRNA by in situ hybridization. RESULTS: A remarkably structural aberration was del 6(q21-qter) counted 20 metaphases among 28 metaphases ana1yzed. In nunierical aberration, all chromosomes were lost or gained randomly. Amenploid including triploid and tetraploid were observed in 8 metaphases, 6 tumor cells contained marker chromosome. In Southern blot analysis, rearrangement and amglificaton of EGFR in primary squamous cell carcinoma of cervix uteri and skin respectively. In slot blot analysis, the levels of c-myc, erb B and EGFR mRNA increaaed respectively 3.5, 2.5 and 2.8 times in SCC when compared to normal tissues. In immunoperoxidase stain, EGFR was present, in SCC where keratinocytes with strong cyto-plasmic staining but no membr, line labelling, where as in normal skin the were primarily present in t,he membrane and cytoplasm of basal cells. In situ hybridization with c-myc cDNAs allowed detection of grains representative of biotin labelled cDNA-mRNA hybrids in the frozden section of SCC tissues. CONCLUSION: These results suggest that specific patterns of karyotypir abnormalites, rearrangement, or amplification of EGFR gene, and overexpression of oncogenes and EGFR gene may be associated with the carcinogenesis of SCC.
Antibodies, Monoclonal
;
Biopsy
;
Biotin
;
Blotting, Southern
;
Carcinogenesis
;
Carcinoma, Squamous Cell*
;
Edible Grain
;
Cervix Uteri
;
Cytogenetics
;
Cytoplasm
;
DNA
;
DNA, Complementary
;
Epidermal Growth Factor*
;
Female
;
Genes, erbB-1
;
In Situ Hybridization
;
Keratinocytes
;
Membranes
;
Metaphase
;
Oncogenes
;
RNA
;
RNA, Messenger
;
Skin
;
Tetraploidy
;
Triploidy
4.A Case of Generalized Granuloma Annulare with Perforating and Subcutaneous Granuloma Annulare.
So Yeong YOON ; Kyung Hoon KIM ; Ki Beom SUHR ; Jang Kyu PARK
Korean Journal of Dermatology 1995;33(6):1119-1123
We present a case of generalized grannuloma annulare with perforating and subcutaneous forms which occurred in a 15-year-old girl. Two years ago, multiple umbilicated, match head to pea sized, erythematous papules were noted on the upper extremities. Then the patient also experienced crusted or ulcerated erythematous papular lesions on the lower legs. Recently, tender, subcutaneous nodules appeared on both soles. The biopsy specimens from the skin lesions of the hand and the sole showed typical findings of granuloma annulare in the dermis and the subcutis, respectively. On the histopathological examination of the calf lesion, palisading granuloma as well as transepidermally eliminating dermal collagenous and necrotic material were seen. The skin lesions were almost completely improved by treatment with dapsone, 100mg a day, for 8 weeks orally.
Adolescent
;
Biopsy
;
Collagen
;
Dapsone
;
Dermis
;
Female
;
Granuloma Annulare*
;
Granuloma*
;
Hand
;
Head
;
Humans
;
Leg
;
Peas
;
Skin
;
Ulcer
;
Upper Extremity
5.Two Cases of Infantile Digital Fibromatosis ; Recurred or Regressed Spontaneously.
Ji Seog YOON ; Yeong Ho KIM ; Ki Beom SUHR ; Jeung Hoon LEE ; Jang Kyu PARK
Korean Journal of Dermatology 1994;32(4):682-686
Infantile digital fibromatoais is a rare benign tumor on fingers and toes of infants and childhood characterized by fibroblaatic proliferation. A 6 months old male infant had a bean sized, flesh nodule on th left 3rd finger. The lesion was noted at 3 days after birth and surgically removed at 7 months old, However, a new lesion developed at the margin of the ald lesion 2 months later. The second patient was a 21 months old female who had two bean sized, flesh nodules on the right 4th snd 5th fingers. The lesion was first noted at 12 months and regressed spontaneously at 30 months without specific interventiona. Histopathological examination of the two cases showed eosinophiric ntracytoplasmic inclusion bodies, charateristic for infantile digital fibromatosis.
Female
;
Fibroma*
;
Fingers
;
Humans
;
Inclusion Bodies
;
Infant
;
Male
;
Parturition
;
Recurrence
;
Toes
6.The Effect of Tumor Removal and Administration of OK432 on the Splenic Natural Killer Cell Activity in the Subcutaneous Tumor Bearing Rats.
Kyu Yun JANG ; Hyun Sang YOON ; Myoung Jae KANG ; Ho Yeul CHOI ; Sang Ho KIM
Korean Journal of Pathology 2000;34(2):105-112
To investigate the effect of tumor removal and administration of OK432 on the splenic natural killer (NK) cell activity in the subcutaneous tumor bearing rats, NK cell activity assay using a 4-hour 51Cr release assay and flow cytometric analysis for NK cell population were performed. The results were as follows: 1. Splenic NK cell activity and population in the subcutaneous tumor bearing rats decreased along with the growth of the tumor. 2. The rats with subcutaneous tumor removal showed decrease of splenic NK cell activity, but splenic NK cell population was not decreased. 3. In the rats with subcutaneous tumor removal and OK432 administration, splenic NK cell activity was significantly increased 1 week after administration of OK432 and then gradually returned to normal, whereas increase of NK cell population was not significant. In the present study, splenic NK cell activity was significantly decreased despite removal of subcutaneous tumor. But with the administration of OK432, splenic NK cell activity returned to normal. Considering the role of NK cells on the first line of defense against the metastatic implantation of circulating tumor emboli, we suggest that perioperative administration of immunopotentiator such as OK432 may improve the patient's outcome after surgery of human neoplasm.
Animals
;
Humans
;
Killer Cells, Natural*
;
Picibanil*
;
Rats*
;
Spleen
7.A case of xanthoma disseminatum.
Ji Seog YOON ; Yeong Ho KIM ; Jeung Hoon LEE ; Kye Yong SONG ; Jang Kyu PARK
Korean Journal of Dermatology 1993;31(5):812-816
We report a case of xanthoma disseminatum in a 24 year old male paitient. Multiple yellow-brown papules developed on the flexor aurfaces, such as the neck, axillae, antecubital fossae, groin, and perianal regions. Some papules were detected arouns the eyes and uvulai. biopsy specimen revealed a dense infiltrate of histiocytes, foam cells, Touton giant cells, and other inflammatory cells. No Langerhans granules were seen in the electron microscopic analysis.
Axilla
;
Biopsy
;
Foam Cells
;
Giant Cells
;
Groin
;
Histiocytes
;
Histiocytosis, Non-Langerhans-Cell*
;
Humans
;
Male
;
Neck
;
Xanthomatosis*
;
Young Adult
8.A case of skin problems in a worker using a visual display terminal.
Kyung Hoon KIM ; Ji Seog YOON ; Yeong Ho KIM ; Jeung Hoon LEE ; Jang kyu PARK
Korean Journal of Dermatology 1993;31(5):796-799
We report a case of a skin problem induced by a visual display t rminal in a 24-year-old female. The patient had erythematcn.is rashes, crusts on both zygomatic areas and upper eyelids with itching, burning and pain sensations after she had been exposed to her visual display terminal. After the cassation of exposure, her skin lesions were markedly improved. A proioction test with her own visual display terminal was positive.
Burns
;
Exanthema
;
Eyelids
;
Female
;
Humans
;
Pruritus
;
Sensation
;
Skin*
;
Young Adult
9.A Case of Superior Vena Cava Syndrome.
So Yeong YOON ; Kyung Hoon KIM ; Ki Beom SUHR ; Jang Kyu PARK
Korean Journal of Dermatology 1995;33(3):570-574
The superior vena cava syndrome can occur when an extrnsc compression or intralurninal occlusion impedes blocxl flow through this vessel. We report a case of superior vena cava syndrome with tirc nbophlebitis on the right forearm in 57 year old male patient who used steroids (p.o) for 25 years.
Forearm
;
Humans
;
Male
;
Middle Aged
;
Steroids
;
Superior Vena Cava Syndrome*
;
Vena Cava, Superior*
10.Rosacea Associated with Polycythemia Vera.
Ki Beom SUHR ; Ji Seog YOON ; Jeung Hoon LEE ; Jang Kyu PARK
Annals of Dermatology 1994;6(1):98-101
We report a case of rosacea in a 65 year old female with a 14 year history of polycythemia vera. The patient suffered from several constitutional symptoms and signs suggestive of polycythemia vera. Six years prior to our initial examination, erythematous lesions were first noted on the center of the face. These lesions exhibited periodic improvement and exacerbation without specific treatment. Histopathologic examination of the facial lesions showed nodular infiltration of lymphocytes and histiocytes and dilation of blood vessels. On the basis of laboratory examination, the patient was diagnosed as polycythemia vera. The patient has received metronidazole, tetracycline, and topical steroids to control rosacea-like facial lesions. The treatment results were not significant. However, phlebotomy markedly improved the skin lesion. To our knowledge, there are no reports describing the clinical course of rosacea lesions following the treatment with phlebotomy.
Blood Vessels
;
Female
;
Histiocytes
;
Humans
;
Lymphocytes
;
Metronidazole
;
Phlebotomy
;
Polycythemia Vera*
;
Polycythemia*
;
Rosacea*
;
Skin
;
Steroids
;
Tetracycline