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Extradigital glomus tumor on the back mimicking keloid scar
( Ha Neul Oh ),( Sook In Ryu ),( Bo Young Kim ),( Ji Hyun Park ),( Sang Wook Son ),( Il-hwan Kim ),( Hye Rim Moon ) 대한피부과학회 2018 대한피부과학회 학술발표대회집 Vol.70 No.1
A glomus tumor is a vascular neoplasm arising from neuromyoaterial glomus cells. Because glomus body is most concentrated in the distal extremities, glomus tumors occasionally appears a blue-red papule or nodule of the distal extremities, most commonly in the subungal region. A 57-year-old male patient visited our dermatology clinic with dark-red colored painful nodule on the Right upper back. The patient mentioned the lesion had rapidly increased after laser treatment at the local clinic. The patient had no underlying diseases including hypertrophic and keloidal scar. Histopathological examination showed monomorphic cells with round to oval bluish nuclei. Immunohistochemistrically, tumor cells were strongly positive for smooth muscle actin (SMA) and negative for CD31, confirming the diagnosis of glomus tumor. After surgical excision, the patient had no tumor recurrence for 3 months. We herein reported an extradigital glomus tumor on the back, which had begun after CO<sub>2</sub> laser ablation. This case indicated extradigital glomus tumor could progress rapidly after laser treatment and mimic other cutaneous tumors including hypertrophic scar, keloid and traumatic neuroma.
Two cases of phymatous rosacea successfully treated by surgical and non-surgical treatment
( Ha Neul Oh ),( Tae Jun Park ),( Bo Young Kim ),( Chang Min Kim ),( Il-hwan Kim ) 대한피부과학회 2018 대한피부과학회 학술발표대회집 Vol.70 No.1
In addition to a primary feature of rosacea, phymatous rosacea may include skin thickening, irregular surface nodularities, and patulous follicles. There are several therapeutic options for phymatous rosacea, including isotretinoin, antibiotics and surgical treatments. However, Phymatous rosacea can be disfiguring and difficult to treat. Case 1. A 79-year-old man patient presented with erythematous large nodular masses on the nose. Under the impression of phymatous rosacea in the advanced stage, because the patient complained about breathing discomfort and cosmetic problems, surgical treatment was considered. Electrocautery was performed to correct the deformity of the nose. Two months later, the lesion was obviously decreased and the results were satisfactory both functionally and cosmetically. Case 2. A 27-year-old man patient, with a history of aplastic anemia, presented with pricky erythematous plaque on the nose. Under the impression of phymatous rosacea in the early stage, treatment was initiated with isotretinoin 20 mg daily. There was a slight improvement at the beginning of the treatment and the lesion was definitely improved from 9 months after the treatment. Currently, the lesion is under the same treatment protocol without any side effects. We herein report on two cases of successfully treated phymatous rosacea, emphasizing the importance of choosing the appropriate treatment modality.
How can we minimize nail dystrophic change in longitudinal melanonychia evaluation?
( Ha Neul Oh ),( Sook In Ryu ),( Bo Young Kim ),( Chang Min Kim ),( Il-hwan Kim ) 대한피부과학회 2018 대한피부과학회 학술발표대회집 Vol.70 No.1
A surgical intervention is needed in longitudinal melanonychia patients when it is difficult to rule out malignancy. Injuries to the nail matrix are induced during nail surgery when the nail plate is excised from its primary attachments. Thus, nail dystrophy after nail surgery is inevitable. Therefore, a surgical technique to minimize nail dystrophy is needed. Here, we discuss the nail matrix removal technique in 2 cases of longitudinal melanonychia. The first patient underwent a total nail extraction with partial nail matrix excision of the left big toe. The second patient had a partial transverse proximal nail extraction with the partial nail matrix removal of the left thumb. In each case, we evaluated 2 aspects of the nail plate after at least 6 months. Firstly, we assessed whether the lesion has been completely excised. In both of the above cases, no residual lesion was observed. Secondly, we measured the degree of nail dystrophy by dividing the nail plate into 4 quadrants and the presence of lesion counted as 1 point. In both cases, nail splitting was observed in 2 quadrants of the nail plate. In order to minimize nail dystrophic change after nail matrix surgery, we used partial nail matrix shave excision. We herein report the importance of understanding the normal structure and pathology of the nail matrix and that nail matrix shave excision is the proper method for evaluating longitudinal melanonychia.
오하늘(Oh, Ha-Neul),강석진(Kang, Seok-Jin) 대한건축학회 2021 대한건축학회 학술발표대회 논문집 Vol.41 No.2
This study categorizes the strategy (CPTED factors) of the CPTED project area and analyzes the CPTED effectivensess by comparing individual strategies and crime data (number of cases, location). As a result of the study, it was confirmed that crime decreased in all radiuses based on the CPTED factor that reflected the principles of ‘surveillance + territoriality (lighting, safety mirror)’ and ‘territoriality + Activity (use of vacant space)’. Other types of CPTED factors tended to decrease crime or increase crime only at a minimum radius (10 m).
오하늘(Oh, Ha-Neul),강석진(Kang, Seok-Jin) 대한건축학회 2021 대한건축학회 학술발표대회 논문집 Vol.41 No.2
The purpose of this study is to examine the crime prevention effect and implications of the project through the analysis of crime data after the urban regeneration project. In both cities A and B, where the urban regeneration project was carried out, there was a slight increase or decrease, but the trend of a steady decrease was confirmed in the five major crimes. However, as a result of the analysis by dividing into trespass crimes and street crimes, the number of street crimes increased relatively, but the crime hotspots had the characteristic of changing year by year in and around the project district.