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주현중,김영걸,정의창,이애영 대한피부과학회 2001 大韓皮膚科學會誌 Vol.39 No.9
The tens, hyperkemtotic vascular stains is a peculiar form of capillary malformations commonly called as giokeratoma or verrucous hemangioma. Hyperkeratotic vascular stains present at birth and consist of vascular dilatation and epidermal proliferation manifested as hyperkeratosis. acanthosis, and papillomatosis. Some authors insisted that angiokeratoma and verrucous hemangioma are not proper terms because they are not true tumors but malformations due to their lack of endothelial proliferation. Wide and deep excisions have been preferred as curative therapy. The patient was a 9-year-old girl with multiple. linear, bluish black colored, hyperkeratotic plaques on her let lower leg. The red patches at birth had slowly enlarged and had become verrucous. Some satellite lesions had also developed. Histopathologic examination showed dilated capillaries filled with red blood cells in the papillary dermis and subcutaneous fat layer. The carbon dioxide laser was used to remove hyperkeratotic plaques. The flash-lamp pumped-pulsed dye laser and intense noncoherent pulsed light were used to remove satellite lesions and vascular lesions for a year. One of the lesions resistant to laser therapy was completely excised. Because multiple hyperkeramtic vascular stains are often impossible to be excised completely, laser therapy may be tried as the first choice.
주현중,정의창,이애영 대한피부과학회 2002 大韓皮膚科學會誌 Vol.40 No.8
Acantholytic dyskeratosis is seen in Darier's disease, transient acantholytic dermatosis and warty dyskeratoma. It is also occasionally observed incidental histological finding in pityriasis rosea, pityriasis rubra pilaris and is occasionally found in linear epidermal nevus. A 10-month-old boy presented linear hyperkeratotic plaques on the right sole and the left hand along with erythematous scaly papules on the posterior neck, the left axilla and the face. Histological findings showed acantholytic dyskeratosis with common histopathological findings of epidermal nevus. Acantholytic dyskeratosis is an occasional finding in linear epidermal nevus, but has been rarely reported in an infant(5 cases reported in 20 years). We report a case of linear epidermal nevus with acantholytic dyskeratosis in an infant.
주현중(Hyun Joong Joo),정의창(Eui Chang Chung),김완섭(Wan Sub Kim) 대한피부과학회 2002 대한피부과학회지 Vol.40 No.10
We report a case of trichilemmal carcimoma in a 82-year-old man who resented an ulcerative tumor. Initially, a crusted mass was observed on the scalp and with subsequent removal of the crust, purulent and ulcerative lesion was seen. After treatment with sensitive antibiotics for 8 days, purulent discharge was markedly decreased in the lesion. Histopathologic findings showed clear cells tumor with trichilemmal keratinization. The tumor cells stained positive to PAS, sensitive to diastase and showed negative findings to CEA, EMA and S-100.
가토 두개골 결손부에서 베타-삼칼슘 인산염 이식 시 혈소판 풍부 섬유소와 혈소판 풍부 혈장의 골형성능에 관한 연구
박정균,주현중,이의석,장현석,임재석,권종진,Park, Jeong-Kyun,Joo, Hyun-Jung,Lee, Ei-Seok,Jang, Hyon-Seok,Lim, Jae-Seok,Kwon, Jong-Jin 대한악안면성형재건외과학회 2011 Maxillofacial Plastic Reconstructive Surgery Vol.33 No.1
Purpose: Addition of platelet-rich plasma (PRP) and platelet-rich fibrin (PRF) to grafting material has become widely accepted additively for bone regeneration because it can raise high expectations on it's clinical potential. The aim of this study was to evaluate the efficacy of PRP and PRF on early bone regeneration of rabbits when used in combination with beta tricalcium phosphate. Methods: In eight rabbits, the calvarium was exposed and the two marrows were penetrated. After then these artificial bone defects were augmented with ${\beta}$-TCP or ${\beta}$-TCP with PRP or ${\beta}$-TCP with PRF and covered. The animals were sacrificed after four and eight weeks. Histologic findings were observed under the light-microscope and histomorphometric analysis was performed by measuring calcified area of new bone formation within the CSD. Results: They demonstrated that new bone formation tended to be produced along the outline of graft materials. More amounts of newly bone was regenerated in ${\beta}$-TCP only and in combination of${\beta}$-TCP with PRF and it was statistically significant. In contrast, there was no significant difference between nothing apply and ${\beta}$-TCP with PRP groups in the relative amounts of newly mineralized bone. Conclusion: Within the limitation of this study, it can be concluded that PRF in combination with ${\beta}$-TCP showed a positive effect on bone regeneration and statistically it was significant.
이의석,주현중,장환용,이진용,임재석,장현석 대한통합치과학회 2014 대한통합치과학회지 Vol.3 No.2
Purpose: The purpose of this study was to compare histologic evaluation of autogenous and allogenous tooth material on bone-healing response in dog. Materials and Methods: Allogenous tooth biomaterial was grafted in the extraction socket of the premolar region in the left lower jaws and autogenous tooth biomaterial was grafted in the right side after 2 weeks. Three dogs were sacrificed after 4, 8, 12 weeks each for histological evaluation. Results: In the histologic analysis, there were no signigicant differences between group 1 (autogenous tooth bone biomaterial) and group 2 (allogenous tooth bone biomaterial) at 4, 8, 12 weeks. Statistical analysis showed that group 1 was more higher bone volume levels than group 2 at 4 weeks (P⁄0.05, Mann-whitney test). Group 2 showed more higher bone volume levels than group 1 at 8 weeks and group 1 more than group 2 at 12 weeks but that showed no significant differences (P¤0.05, Mann-whitney test). Conclusion: Histologically, autogenous and allogenous tooth biomaterial reveals similar healing patterns in extraction socket in dogs. The result of this study suggested that tooth biomaterials could be useful materials for socket preservation.