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손발톱하 사구 종양에서 초음파를 이용한 진단 및 수술 전 평가
장시혁 ( Sihyeok Jang ),조성문 ( Seongmoon Jo ),박송연 ( Song Youn Park ),윤현선 ( Hyun Sun Yoon ),조소연 ( Soyun Cho ),박현선 ( Hyun Sun Park ) 대한피부과학회 2014 대한피부과학회지 Vol.52 No.5
Subungual glomus tumors are benign neoplasms that arise from the neuromyoarterial apparatus. They present with various clinical symptoms such as localized pain, tenderness, and sensitivity to temperature change and can be palpated as a nodule or mass on physical examination. Pressure erosion can be seen at adjacent bones on radiography. However, in most cases, the tumors are too small to be inspected and located under the nail plate, which makes correct diagnosis and complete excision very difficult. Incomplete removal can cause recurrence or deformity to the residual nail, whereas extensive removal can cause trauma or deformity to the nail plate. Thus, correct differential diagnosis and preoperative evaluation of the location and extent of the tumor are very important. Here, we report 2 cases that were diagnosed and preoperatively evaluated using ultrasound. (Korean J Dermatol 2014;52(5):341∼344)
FC 2-6 : Risk factors for premature hair graying: family history, smoking, and obesity
( Hyoseung Shin ),( Hyeong Ho Ryu ),( Junghee Yoon ),( Seongmoon Jo ),( Sihyeok Jang ),( Mira Choi ),( Ohsang Kwon ),( Seong Jin Jo ) 대한피부과학회 2014 대한피부과학회 학술발표대회집 Vol.66 No.2
Background: The risk factors for premature hair graying (PHG) have not been the focus of research. Objectives: This study aimed to identify risk factors for PHG in healthy young Korean males. Methods: We conducted a cross-sectional study using questionnaires in males younger than 30 years. After a pilot study that included 1,069 males, we surveyed 6,390 males about their gray hair status and various socio-clinical characteristics. Results: In the pilot study, body mass index, family history of PHG, and emotional stress were associated with PHG. The age of participants in the main survey was 20.2 ± 1.3 years (mean ± standard deviation). Of the 6,390 participants, 1,618 (25.3%) presented with PHG. Family history of PHG (odds ratio [OR], 12.82), obesity (OR, 2.61), and >5 pack-years history of smoking (OR, 1.61) were significantly associated with the development of PHG. A paternal history of PHG (OR, 14.84; CI, 10.10-21.81) (P <0.001) had a greater association with PHG than a maternal history (OR, 2.92; CI, 1.57-5.43) (P = 0.001). In the multivariate analysis, family history of PHG (OR, 2.63) and obesity (OR, 2.22) correlated with the severity of PHG. Conclusion: Family history of PHG, obesity, and smoking were significantly associated with the incidence of PHG. Smoking and obesity are independently associated with systemic oxidative stress. Our findings imply that hair graying is affected by oxidative stress, which may provide an approach for health education against obesity and smoking.