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백반증에서 미세분할 레이저의 색소침착 유도 효과: 예보
정승현 ( Seung Hyun Cheong ),정윤 ( Yun Jung ),황규광 ( Kyu Kwang Whang ) 대한피부과학회 2009 대한피부과학회지 Vol.47 No.5
Background: Numerous modalities of treatment for vitiligo have been introduced and have been proposed; however, treatment for vitiligo remains challenging with no adequate solution. Objective: This study was designed to examine the capability of the use of a fractional laser to induce pigmentation for vitiligo and to investigate the therapeutic and clinical parameters that affect therapeutic outcome. Methods: A total of 30 lesions in 12 patients with vitiligo were treated clinically with three fractional laser systems with a four-week interval. Simultaneously, all patients were treated with narrow-band UVB (NBUVB) light twice a week. The pigmentation rates were graded based on the use of a five-point scale by a dermatologist. We also investigated the patient satisfaction level and compared the pigmentation rates of the lesions treated with a fractional laser plus NBUVB with control areas treated only with NBUVB. In addition, we analyzed the mean grade of pigment induction for various therapeutic and clinical parameters. Results: A total of 30 lesions were treated with a fractional laser. The pigmentation grade and satisfaction score were higher in the areas treated with a fractional laser, especially with an Nd:YAG fractional laser, as compared to the control areas. The degree of pigmentation was better achieved for small-sized lesions (<2 cm2). Other clinical parameters that affected the therapeutic outcome were the duration of vitiligo and the existence of poliosis. However, the anatomical location of lesions and the type of vitiligo did not affect the therapeutic outcome. No significant side effects were observed. Conclusion: A fractional laser system offers an increase of overall pigmentation with a minimal risk of discomfort and side effects, especially for a small-sized patch of vitiligo without poliosis and for patients with vitiligo of a short duration (less than one year). (Korean J Dermatol 2009;47(5):547~553)
정승현 ( Seung Hyun Cheong ),임지연 ( Ji Yeon Lim ),최혜영 ( Hae Young Choi ),명기범 ( Ki Bum Myung ),최유원 ( You Won Choi ) 대한피부과학회 2009 대한피부과학회지 Vol.47 No.6
Superficial epithelioma with sebaceous differentiation (SESD) is a rare benign neoplasm that shows unique histologic features despite of the non-specific clinical findings. It is histopathologically characterized by a superficial multilobular plate-like proliferation of basaloid cells with clusters of sebocytes, and the plate-like proliferation has numerous broad attachments to the overlying epidermis. We report here on a case of multiple SESDs that presented on the trunk and extremities of 59-year-old woman. (Korean J Dermatol 2009;47(6):699∼701)
정승현 ( Seung Hyun Cheong ),한유진 ( You Jin Han ),최유원 ( You Won Choi ),최혜영 ( Hae Young Choi ),명기범 ( Ki Bum Myung ) 대한피부과학회 2009 대한피부과학회지 Vol.47 No.2
Cutaneous lymphadenoma is a rare distinctive benign adnexal tumor of unknown histogenesis. It usually presents as a slowly growing, skin-colored nodule on the head and neck. Histologically, this tumor is composed of dermal lobules with a biphasic pattern of epithelial and lymphoid cells. We report two additional examples of this peculiar neoplasm. (Korean J Dermatol 2009;47(2):192∼195)
비전형적인 조직소견을 보인 회음부의 색소성 정중솔기낭종 1예
김현희 ( Hyun Hee Kim ),명기범 ( Ki Bum Myung ),권은선 ( Eun Sun Kwon ),정승현 ( Seung Hyun Cheong ) 대한피부과학회 2022 대한피부과학회지 Vol.60 No.3
Median raphe cysts (MRCs) are rare benign lesions that occur as a result of congenital defects during the embryological development of the male genitalia in the fetal period. It can develop anywhere along the midline, from the meatus to the anus. Pigmented MRCs are rare subtypes that contain melanin pigments or melanocytes in the epithelium, and there are only eight such cases reported worldwide. We report herein a case of pigmented MRC in the perineum of a 3-year-old boy. The clinical features include a linear tubular structure and foreign body granuloma at the tip of the linear cystic lesion and rare histological findings of pigmented cuboidal epithelium and squamous epithelium. Immunohistochemical staining revealed strong positivity for c-kit in the pigmented cuboidal epithelium. In this report, we discuss a rare case of pigmented MRC with a mixed type of squamous epithelium and pigmented cuboidal epithelium and review the associated literature. (Korean J Dermatol 2022;60(3):173∼177)
한방치료 및 천수근약침을 병행하여 치료한 제 1형 복합부위통증증후군 환자 치험 1례
정재현,윤영웅,정승현,김신웅,최희승,신동재,왕선준,Chung, Jai-Hyeon,Yun, Young-Ung,Cheong, Seong-Hyun,Kim, Sin-Woong,Choi, Hee-Seung,Shin, Dong-Jae,Wang, Shann-Jun 척추신경추나의학회 2013 척추신경추나의학회지 Vol.8 No.1
한랭자극에 취약한 복합부위통증증후군 환자 1례를 대상으로 한방치료 및 천수근약침 치료를 시행한 결과 환자의 주소증 및 NRS, ODI, MMT 결과상 호전이 있었음을 확인하였다. Objectives: The purpose of this case is to investigate and report the effectiveness of korean Medicine treatment and Harpagophytum radix. Pharmacopuncture for the type 1 complex regional pain syndrome. Methods: One patient is admitted at Bu-Chun Jaseng Hospital of Korean Medicine, diagnosed as type 1 complex regional pain syndrome and treated with korean Medicine treatment and Harpagophytum radix. pharmacopuncture. This case is measured and assessed by Neumerical Rating Scale(NRS), Oswestry Low-back Pain Disability Index(ODI) and Manual Muscle Test(MMT). Results: After treatment, the intensity and frequency of complex regional pain is gradually decreased and the result of NRS, ODI, MMT showed improvement. Conclusions: As seen in this cases of type 1 complex regional pain syndrome, korean Medicine treatment and Harpagophytum radix. pharmacopuncture appear to be effective for the pain relief and musculoskeletal function recovery.
소아에서의 첩포검사: 알레르기접촉피부염의 흔한 원인항원 및 성인과의 비교 연구
이상우 ( Sang Woo Lee ),정승현 ( Seung Hyun Cheong ),최유원 ( You Won Choi ),명기범 ( Ki Bum Myung ),최혜영 ( Hae Young Choi ) 대한피부과학회 2012 대한피부과학회지 Vol.50 No.1
Background: Allergic contact dermatitis (ACD) was once regarded as a disorder of the adult population, while ACD in children was considered rare. However, ACD in children may be more common than previously realized and more recently, it has been estimated that more than 20% of the pediatric population is affected by ACD. However, in Korea results of patch testing in the pediatric population has not yet been reported. Objective: The purpose of this study was to analyze allergens responsible for ACD in Korean children and investigate the influence of sex, involved site, and atopic dermatitis on contact allergen sensitization. We also wanted to compare the results between the pediatric and the adult group. Methods: A retrospective analysis of all patch test results from our data base between 2009 and 2011 was performed. A total of 234 patients were patch tested. The pediatric population was defined as patients 18 years and younger, and total 30 pediatric patients were included. Results: A total of 30 patch tested cases (male 12, female 18) were analyzed. Overall, 66.7% of pediatric patients had at least one positive reaction and common allergens were nickel sulfate (33.3%), thimerosal (13.0%), and black rubber mix (10.0%) in order of frequency. There were no significant differences between contact allergen sensitivity and sex or involved sites. However, in the atopic group, the positive reactions to wool alcohols were significantly higher than in the non-atopic group (p=0.0076). In adults, common allergens were nickel sulfate (34.8%), p-tert butylphenol formaldehyde resin (11.8%), cobalt chloride (11.3%) and thimerosal (11.3%) in order of frequency. This was not significantly different to the pediatric group. Conclusion: ACD in children is not uncommon and patch testing in suspected children revealed 66.7% of positive reaction. (Korean J Dermatol 2012;50(1):18∼24)
성은아 ( Eun Ah Suhng ),정승현 ( Seung Hyun Cheong ),최혜영 ( Hae Young Choi ),명기범 ( Ki Bum Myung ),최유원 ( You Won Choi ) 대한피부과학회 2012 대한피부과학회지 Vol.50 No.3
Lichen planus pigmentosus (LPP) is an uncommon variant of lichen planus, which manifests as hyperpigmented dark brown macular hyperpigmentations chiefly involving the face and upper extremities. The histopathologic changes consist of vacuolar degeneration of the basal layer, presence of dermal melanophages, and lichenoid lymphocytic infiltrations. LPP with exclusive localization in intertriginous areas is named as LPP-inversus, and is infrequently reported in previous dermatologic literature. A 16-year-old girl presented with several brownish to dark grayish patches on both axilla for 7 months. The lesions were asymptomatic and did not have preceding erythema. The patient had not come into contact with any chemicals and denied existence of previous allergy episodes, and her medical history was non-contributory. A skin biopsy from a brownish patch revealed vacuolar alteration of the basal layer, and band-like lymphocytic infiltration with pigment incontinence. We report a typical case of LPP-inversus with relevant literature. (Korean J Dermatol 2012;50(3):255~258)
류소민 ( So Min Lyu ),정승현 ( Seung Hyun Cheong ),변지연 ( Ji Yeon Byun ),최유원 ( You Won Choi ),오지원 ( Chee Won Oh ),최혜영 ( Hae Young Choi ) 대한피부과학회 2013 대한피부과학회지 Vol.51 No.3
Necrobiosis lipoidica is a chronic granulomatous disease that has a well-known association with diabetes mellitus. It usually affects the bilateral lower legs of middle-aged women. Over time, the clinical features vary from red-brown papules to sharply demarcated yellow-brown plaque with atrophic center. Some of the lesions may become ulcerated, especially in diabetic patients. A 61-year-old Korean female with a history of diabetes, ischemic heart disease, and pancreatic cancer was referred to our clinic for evaluation of the painful papulovesicles on her left lower leg. Under the assumptive diagnosis of herpes zoster, we immediately started an antiviral agent. However, her skin lesions rapidly increased in size and in number, and progressed to the multiple ulcerations in 9 days. Histopathologic examination showed several poorly circumscribed necrobiotic granulomas in the deep dermis and subcutis levels of the skin. In addition, prominent vascular ectasia and vasculitis were observed. We diagnosed the patient as having necrobiotic lipoidica, and treated her with oral dapsone, colchicine, phentoxifylline and antiplatelets. Her leg ulcerations healed after four weeks of treatment. (Korean J Dermatol 2013;51(3):215∼218)
성은아 ( Eun Ah Suhng ),정승현 ( Seung Hyun Cheong ),최혜영 ( Hae Young Choi ),명기범 ( Ki Bum Myung ),최유원 ( You Won Choi ) 대한피부과학회 2011 대한피부과학회지 Vol.49 No.11
CD4+/CD56+ hematodermic neoplasm is a rare and aggressive lesion that affects many organs, and skin involvement is highly characteristic. It is also termed blastic natural killer cell lymphoma in the World Health Organization classification. Several origins of tumor cells have been proposed, but recent studies have shown a relationship with plasmacytoid dendritic cells. A 2-year-old boy presented with multiple bruise-like violaceous subcutaneous nodules and plaques on the trunk, upper and lower extremities. Histological examination showed small-to-medium-sized blastoid cellular infiltration in the dermis and subcutaneous tissue. Tumor cells were positive for CD4, CD56 and TdT, and negative for CD8, CD20 and MPO. It primarily affects elderly patients, but, in this case, occurred in an infant. Due to its rarity, we present a case of CD4+/CD56+ hematodermic neoplasm affecting a pediatric patient. (Korean J Dermatol 2011;49(11):1017∼1020)