1.Clinical observation of Osteomyelitis in Childhood.
Seong Gyoo PARK ; Young Suk HONG ; Se Jin KANG ; Sun Gyum KIM ; Pyung Hwa CHOI
Journal of the Korean Pediatric Society 1990;33(4):499-505
No abstract available.
Osteomyelitis*
2.A Case of Lymphomatoid Papulosis with Atypical Clinical Manifestation.
Young Min PARK ; Sung Woo CHOI ; Dae Gyoo BYUN ; Baik Kee CHO ; Won HOUH ; Chang Suk KANG
Korean Journal of Dermatology 1994;32(2):305-311
We report herein a case of lymphomatoid papulosis showing atypical clinical manifestations. A 54- year-old man had had recurrent erythematous necrotic papules and nodues, numbering more than 200 lesions at the most aggravated time, on the trunk, extremities, buttok, and face for the last twenty years. Recently, he complained of tender swelling on the neck, axillae, and inguinal lymph nodes accompanied by mild fever and gerneral weakness. We had performed thorough examinations including biopsy from the skin lesions, lymph node, and bone marrow to detect some evidences of transforming to malignant lymphoma, but found no evidence of malignant lymphoma except aneuploidy on DNA histogram. The patients showed proinpt response to methotrexate 10-30mg par week wit,hout showing distinct side reactions to the accurvulated dose of 780mg for the last 16 months.
Aneuploidy
;
Axilla
;
Biopsy
;
Bone Marrow
;
DNA
;
Extremities
;
Fever
;
Humans
;
Lymph Nodes
;
Lymphoma
;
Lymphomatoid Papulosis*
;
Methotrexate
;
Neck
;
Skin
3.Correction of Depressed Nasal Base and Piriform Aperture Using Polyethylene Implants.
Su Young CHOI ; In Soo BAEK ; Chul Gyoo PARK ; In Pyo HONG ; Du Young RHEE
Archives of Aesthetic Plastic Surgery 2011;17(2):107-111
Lower midface concavity due to depressed nasal base and pyriform aperture may be aesthetically displeasing. A relative deficiency in lower midface projection may be congenital or acquired, particularly after cleft surgery and trauma. People with normal occlusion associated with lower midface concavity due to depressed nasal base and pyriform aperture can be corrected with an autologous bone graft or artificial implants. The authors performed paranasal augmentation with an alloplastic implants using a porous polyethylene implants(Medpor(R)) on 430 patients who had visited authors' hospital for aesthetic correction of lower midface contour from January 2000 to June 2009. 425 patients were satisfied with the outcome, which gave them a natural contour. Complications such as dislocation, displacement, infection and extrusion were not observed. Only five patients had their implants removed due to displeasing and foreign body sensations. Alloplastic augmentation in the paranasal area is a very easy procedure and can simulate the visual effect as that of maxillary advancement osteotomy. Paranasal augmentation using a porous polyethylene implants(Medpor(R)) in patients having lower midface concavity with normal occlusion can contribute to the enhancement of the lower midface contour.
Alveolar Ridge Augmentation
;
Dislocations
;
Displacement (Psychology)
;
Foreign Bodies
;
Humans
;
Osteotomy
;
Polyethylene
;
Prostheses and Implants
;
Sensation
;
Transplants
4.Antimicrobial Effect of Low Temperature Atmospheric Plasma against Oral Pathogens.
Young Min KIM ; Byul Bo Ra CHOI ; Sang Rye PARK ; Ji Young KIM ; Gyoo Cheon KIM
International Journal of Oral Biology 2015;40(4):167-173
The purpose of this study was to investigate the antibacterial effect of the low temperature atmospheric plasma device with needle tip designed for easy approach to the oral cavity and root canal against Streptococcus mutans, Enterococcus faecalis and Candida albicans. The antibacterial activities evaluated by measuring clear zone of agar plate smeared with each bacteria after plasma treatment. To quantify antibacterial effects, dilution plate method was used. In addition, scanning electron microscope (SEM) was used for observation of changes in bacterial morphology. As treatment time of plasma increased, the clear zone was enlarged. The death rate was more than 99%. The SEM results showed that the globular shape of bacteria was distorted. These results suggest that needle tip plasma could be an innovative device for prevention of dental caries, and treatment of apical infection and soft tissue diseases.
Agar
;
Bacteria
;
Candida albicans
;
Dental Caries
;
Dental Pulp Cavity
;
Enterococcus faecalis
;
Mortality
;
Mouth
;
Needles
;
Plasma*
;
Streptococcus mutans
5.A Case of Generalized Granuloma Annulare Localized to the Intertriginous Area
Gyoo HUH ; Heun-Joo LEE ; Young-Jun CHOI ; Won-Serk KIM ; Ga-Young LEE
Korean Journal of Dermatology 2021;59(10):797-800
Granuloma annulare (GA) is a common non-infectious granulomatous disease. Generalized GA is the second most common variant of GA. It is often associated with recalcitrant disease progression despite treatment. The lesion of generalized GA typically presents widespread papules that coalesce to form annular plaques over the whole body.We report a case of a patient with disseminated papules and coalescing annular plaques, primarily involving the intertriginous area and mimicking tinea corporis or cruris. Histopathological findings confirmed the lesion as GA. This case underscored the unusual clinical presentation of generalized GA. A case of GA localized to the intertriginous area has rarely been reported. Given the recalcitrant nature of the disease, dermatologists should consider generalized GA as a differential diagnosis in patients with an annular lesion involving the intertriginous area. Thus, we report this as an atypical case of generalized GA localized to the intertriginous area.
6.Port-Wine Stains Confined to a Single Cosmetic Unit than on Multiple Cosmetic Units Respond Better to Pulsed Dye Laser Treatment: A Retrospective Study
Gyoo HUH ; Jin Seop KIM ; Heun Joo LEE ; Young-Jun CHOI ; Ga-Young LEE ; Won-Serk KIM
Korean Journal of Dermatology 2021;59(10):785-792
Background:
Cosmetic units are designated based on their similarity in topographic anatomy, texture and color, solar exposure, hair density, and sebaceous features. The difference of such features in facial port-wine stain (PWS) cases can affect the response to pulsed dye laser (PDL) treatment.
Objective:
To evaluate the response of facial PWS to PDL treatment based on the underlying cosmetic units.
Methods:
A retrospective study was conducted on 18 patients with facial PWS who received PDL treatment. For clinical assessment, three dermatologists evaluated the photographs taken before each treatment session. The response grade was assigned according to the quartile grading scale. The lesion was classified based on the underlying cosmetic units.
Results:
The cheek was the most (50%) commonly involved area. All PWS (6/6) confined to one cosmetic unit showed a marked improvement compared with 16% PWS (2/12) affecting two or more units (p<0.05). Patients with PWS within one cosmetic unit required fewer treatment sessions to achieve marked improvement.
Conclusion
PWS confined to a single cosmetic unit than that located in two or more units responded better to PDL treatment. Before PDL treatment for facial PWS, age, initial lesion size, as well as the number of cosmetic units affected by the lesion should be considered.
8.An Excimer Laser-Induced Eruptive Sebaceous Hyperplasia
Gyoo HUH ; Ga-Young LEE ; Seung-Wan CHAE ; Young-Jun CHOI
Annals of Dermatology 2023;35(Suppl2):S268-S271
Sebaceous hyperplasia (SH) is a benign proliferation of the sebaceous glands. Ultraviolet radiation is known to be the cofactor for the pathogenesis of SH. Frequently reported adverse events of 308-nm excimer laser are erythema, burning or pain, and itching sensation.However, the role of excimer laser as an aetiological factor of SH is rarely reported in the literature. A 59-year-old female presented with several elevated, umbilicated papules on the face. Papular eruption appeared abruptly after 11 weeks of treatment for vitiligo which includes 308-nm excimer laser therapy. The distribution of lesion was associated with the treated area. Total cumulative dose was 3,300 mJ/cm 2 over 16 sessions. Histopathologic findings showed enlarged sebaceous glands composed of numerous lobules around a centrally located, widened sebaceous duct. Chronic sun exposure clinically causes SH was proved in the previous animal studies. Thus, we introduce a rare case of eruptive SH in the patient treated with 308-nm excimer laser.
9.Pathologically Confirmed Subcutaneous Fat and Lymphovascular Invasion of a Hypopigmented Area in Extramammary Paget Disease
Gyoo HUH ; Ga-Young LEE ; Yumin CHUNG ; Seung-Wan CHAE ; Young-Jun CHOI
Annals of Dermatology 2023;35(Suppl2):S229-S233
Extramammary Paget disease (EMPD) is a rare adenocarcinoma that usually occurs in areas of the body that are rich in apocrine sweat glands. Great depth of tumor invasion is a well-known risk factor for worse prognosis. Paget cells usually are limited to the epidermis, whereas invasive EMPD, which infiltrates the dermis, is relatively rare. It is even rarer for the tumor to spread beyond the dermis. Only 3.1% of patients with EMPD of the penis and scrotum have exhibited infiltration of the subcutaneous fat layer. We report a case of a 62-year-old male with EMPD that invaded the subcutaneous fat layer. He presented with a several-year history of a slowly expanding erythematous plaque with the hypopigmented area on the left penoscrotum. One month before presentation, the patient had undergone punch biopsy at another hospital and diagnosed with EMPD. He had no personal history of urogenital cancers. The patient was treated with Mohs micrographic surgery, and negative margins were achieved after four stages. The histopathologic findings revealed Paget cells scattered throughout the epidermis. At the hypopigmented area, Paget cells extended to the subcutaneous fat layer with lymphovascular invasion. There was no evidence of recurrence at seven months postoperatively. Herein, we describe a case of hypopigmented EMPD that infiltrated the subcutaneous layer, which rarely has been reported in Korea.
10.Evaluation of the safety of non-thermal atmospheric-pressure plasma in hairless mouse tissues.
Sang Rye PARK ; Gyoo Cheon KIM ; Byul Bora CHOI ; Ji Young KIM
Journal of Korean Academy of Oral Health 2014;38(3):148-153
OBJECTIVES: The aim of the present study was to evaluate the stability of non-thermal atmospheric-pressure plasma on Candida albicans in hairless mouse-2 (HRM-2) tissues. METHODS: HRM-2 mice were subjected to non-thermal atmospheric-pressure plasma jet treatment using an optical fiber probe and monitored using a thermometer. The skin of HRM-2 mice was treated with plasma jet for 0, 60, 180, and 300 s per day for 5 days. After plasma treatment, morphological changes in Candida albicans on the skin of these mice were examined using a scanning electron microscope. Biopsy of the plasma-treated skin was performed and the tissues were histologically analyzed using hematoxylin and eosin (H&E) and Masson's trichrome stains. RESULTS: The scanning electron microscopic images revealed the morphological changes in the membrane structure of the plasma-treated Candida albicans. Histological analysis showed that non-thermal plasma treatment did not cause epidermal damage or tissue inflammation and did not significantly modify the collagen layers of the mouse skin. CONCLUSIONS: The results of this study suggest that non-thermal atmospheric-pressure plasma might be safe and effective for clinical applications in the field of dentistry.
Animals
;
Biopsy
;
Candida albicans
;
Collagen
;
Coloring Agents
;
Dentistry
;
Eosine Yellowish-(YS)
;
Hematoxylin
;
Inflammation
;
Membranes
;
Mice
;
Mice, Hairless*
;
Microscopy, Electron, Scanning
;
Optical Fibers
;
Plasma Gases
;
Plasma*
;
Skin
;
Thermometers