http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Pityriasis alba: A clinical study of extra-facial and extensive type
( Dongyoung Roh ),( Woo-il Kim ),( Min-young Yang ),( Won-ku Lee ),( Tae-wook Kim ),( Sung-min Park ),( Hyun-joo Lee ),( Gun-wook Kim ),( Hoon-soo Kim ),( Hyun-chang Ko ),( Byung-soo Kim ),( Moon-bum 대한피부과학회 2018 대한피부과학회 학술발표대회집 Vol.70 No.2
Background: Pityriasis alba (PA) is a common, nonspecific skin disorder usually seen in children. It frequently involves the face, but involvement of other site can also occur. Clinical characteristics of classic PA have been studied well. However, extra-facial or extensive PA have rarely been studied. Objectives: To investigate clinical features of extra-facial and extensive PA Methods: We included 291 PA patients who visited Pusan National University Hospital (Busan and Yangsan) over a 16-year period (2003-2018). Results: 265 (91.1%) patients had facial PA and 44 (15.1%) patient had extra-facial PA. 14 (4.8%) patient showed extensive involvement. Extra-facial PA had more numerous and bigger lesions than facial PA. Also extra-facial PA showed more symmetrical distribution. Onset age, concomitant atopic dermatitis and subjective symptom were not significantly different between two groups. Extra-facial and extensive PA most commonly involved lower trunk (47.7%, 71.4% respectively). Regarding the texture of the lesion, facial lesions (58.1%) showed more scales than other lesions (26.9%). Among the extra-facial lesions, lesions on the extremities (43.3%) were more scaly than truncal lesions (13.5%). Conclusion: To our knowledge, extra-facial and extensive PA have rarely been studied. When encountering extra-facial hypopigmented lesions, our data could be helpful in diagnosing PA.
Clinical findings of onychophagia in Korean patients: a single centre experience
( Dongyoung Roh ),( Tae-wook Kim ),( Sung-min Park ),( Hyun-joo Lee ),( Hyunju Jin ),( Hyang-suk You ),( Woo-haing Shim ),( Gun-wook Kim ),( Hoon-soo Kim ),( Hyun-chang Ko ),( Byung-soo Kim ),( Moon-b 대한피부과학회 2017 대한피부과학회 학술발표대회집 Vol.69 No.2
Background: Onychophagia, defined as habitual nail biting, is a common disorder affecting 20~30% of the population. It can cause various changes of nail units. However, there have been no studies analyzing nail changes due to onychophagia. Objectives: To identify clinical characteristics of nail changes due to onychophagia in Korea Methods: This study included 36 onychophagia patients who visited Pusan National University Hospital (Busan and Yangsan) over a 15-year period (2002-2017). We reviewed medical records and clinical photographs retrospectively. Results: All ten finger nails were affected in 38.9% of patients. Left thumbnail was the most predominantly affected site (80.6%), followed by right thumbnail (75%). In clinical findings, nail bed shortening was the most common presentation (66.7%), followed by rough nail plate (47.2%), transverse groove (33.3%), brittle and splitting nail (25%), splinter hemorrhage (22.2%), longitudinal melanoychia (22.2%), wash-board nail (16.7%), and pterygium (5.6%). 83.3% of patients had periungual complication such as periungual exfoliation (69.4%), absent of ragged cuticle (58.3%), and paronychia (19.4%). Conclusion: To our knowledge, this study is the first study investigating clinical characteristics of onychophagia. The result of this study could be helpful when encountering onychophagia.
( Dongyoung Roh ),( Tae-wook Kim ),( Sung-min Park ),( Hyun-joo Lee ),( Hyunju Jin ),( Hyang-suk You ),( Woo-haing Shim ),( Gun-wook Kim ),( Hoon-soo Kim ),( Hyun-chang Ko ),( Byung-soo Kim ),( Moon-b 대한피부과학회 2017 대한피부과학회 학술발표대회집 Vol.69 No.2
Background: Melanoacanthoma (MA) is considered to be heavily pigmented variant of seborrheic keratosis. Owing to their pigmentation, MA may mimic the clinical appearance of malignant melanoma (MM). However, the dermoscopic patterns of MAs and MA-like MMs have rarely been compared yet. Objectives: To find the clinical and dermoscopic difference between MA and MA-like MM Methods: This study included 77 MA and 33 MA-like MM patients. We reviewed medical records, clinical and dermoscopic findings of the two groups retrospectively. Results: Crypt and comedo-like opening (70.4%) in MAs and blue-white veil (60.6%) in MMs were the most common dermoscopic findings respectively. Crypt, comedo-like opening, milia-like cyst, fissure, and hairpin vessel appeared more frequently in MA (p<0.05). On the other hand, atypical pigment network, blue-white veil, pseudopod and streak, atypical vessel, and base pigmentation presented more in MM (p<0.05). MAs quite often showed melanoma specific dermoscopic findings, especially blue-white veil (22.1%). Also, fissure (42.4%), crypt (21.2%), and comedo-like opening (15.2%) were observed in MMs, although they were typically benign pattern. Conclusion: Different dermoscopic patterns between two groups might be important clues of differential diagnosis in clinically MA-like lesions. However, we should be aware that melanoma specific dermoscopic patterns could be observed quite often in MA.
Granuloma pyogenicum-like nodule on scrotum: can you consider a perianal fistula?
( Dongyoung Roh ),( Woo-il Kim ),( Min-young Yang ),( Won-ku Lee ),( Sung-min Park ),( Hyun-joo Lee ),( Gun-wook Kim ),( Hoon-soo Kim ),( Hyun-chang Ko ),( Byung-soo Kim ),( Moon-bum Kim ),( Tae-wook 대한피부과학회 2018 대한피부과학회 학술발표대회집 Vol.70 No.1
To dermatologists, it is important to keep in mind the connectivity with internal organs when examining skin lesions around the mouth and anus. The report or knowledge of cutaneous odontogenic fistula is relatively well established in dermatology, but not for perianal fistula. A 53-year-old man presented with erythematous erosive nodule on scrotum for 5 years. He underwent incision and drainage at surgical clinic several times with recurrent abscess. We conducted incisions under the clinical impression of granuloma pyogenicum, a large amount of pus was released from the lesion. A biopsy specimen showed mixed inflammation with lymphocytes, neutrophils, and plasma cells. An indurated cord-like structure beneath the skin from the scrotal lesion toward the internal anal canal was revealed on palpation at the follow-up physical examination. Magnetic resonance imaging showed low signal intensity track like lesion from the anus to right ischioanal fossa presuming transsphincteric perianal fistula. Thus, the patient underwent fistulectomy and had no recurrence thereafter. The external opening of perianal fistula is most likely to occur on the perianal area, but may also occur in scrotum which is relatively distant from anus as in this case. Therefore, the dermatologist should perform a detailed physical examination encountering recurrent inflammatory lesion on the scrotum and perianal area.
Treatment efficacy of 1064nm Q-switched Nd:YAG laser in ectopic Mongolian spot
( Dongyoung Roh ),( Woo-il Kim ),( Min-young Yang ),( Won-ku Lee ),( Tae-wook Kim ),( Sung-min Park ),( Hyun-joo Lee ),( Gun-wook Kim ),( Hoon-soo Kim ),( Byung-soo Kim ),( Moon-bum Kim ),( Hyun-chang 대한피부과학회 2018 대한피부과학회 학술발표대회집 Vol.70 No.2
Background: Q-switched neodymium-yttrium aluminium-garnet (Q-switched Nd:YAG) laser has been reported as effective treatment of nevus of Ota and acquired bilateral nevus of Ota-like macules. Data about ectopic Mongolian spot has rarely been reported. Objectives: To investigate treatment efficacy of 1064nm Q-switched Nd:YAG laser in ectopic Mongolian spot Methods: We included 62 patients with ectopic Mongolian spot and a total of 71 lesions were checked. 33 lesions were treated with 1064nm Q-switched Nd:YAG laser and 38 lesions were observed without treatment. The result was assessed by Mexameter and quintile grading scale. Results: Mean follow-up duration was 17.8±10.0 months in observation group and 14.1±6.8 months in treatment group. There was a statistically significant difference (p<0.001) in Δ melanin index (initial melanin index - final melanin index) between observation group (7.1±62.7) and treatment group (156.7±78.4). Mean quintile grading scale at final follow-up was also statistically different (p<0.001) between two groups (observation: 0.84±0.95, treatment: 2.82±1.01). Conclusion: Q-switched Nd:YAG laser is also effective in treating ectopic Mongolian spot not only in Ota’s nevus or Hori’s nevus.
P206 Comparison of clinical features between segmental nevus depigmentosus and segmental vitiligo
( Dongyoung Roh ),( Hyunju Jin ),( Hyang-suk You ),( Woo-haing Shim ),( Jeong-min Kim ),( Gun-wook Kim ),( Hoon-soo Kim ),( Hyun-chang Ko ),( Byoung-soo Kim ),( Moon-bum Kim ) 대한피부과학회 2016 대한피부과학회 학술발표대회집 Vol.68 No.2
<div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div> Background: Segmental nevus depigmentosus (SND) and segmental vitiligo (SV) have similar clinical characteristics. Therefore, Differential diagnosis between two diseases can be difficult. There have been no studies comparing clinical features of two diseases. Objectives: We investigated clinical features of SND and SV to find out some clues which can be helpful in differentiating two diseases. Methods: 63 SND patients and 149 SV patients were enrolled in the study. Sex, age of onset, involved sites, dermatomal distribution, shape and margin of lesion, and presence of poliosis were surveyed from both group. Results: 96.8% of SND started before 10 year, while 28.9% of SV first appeared before 10 year. Most commonly involved site and dermatome of SND were trunk (36.5%) and cervical (38.1%), and those of SV were face (67.1%) and trigeminal (64.4%). The average numbers of involved dermatomes in truncal lesions of both groups were different (SND=2.71 versus SV=1.62, P-value=0.001). SV located on face, neck and trunk appeared closer to axis than SND (P-value<0.001). Two groups showed significantly different margins (90.5% serrated in SND versus 41.6% serrated in SV, P-value<0.001). Conclusion: Comparing clinical features of ND and SV, we observed there was clinical differences between two groups. Especially, dermatomal distribution and margin of lesion can be helpful clinical clues for differential diagnosis of ND from SV.
Halo scalp ring: Infantile annular alopecia
( Dongyoung Roh ),( Kihyuk Shin ),( Woo-il Kim ),( Min-young Yang ),( Won-ku Lee ),( Gun-wook Kim ),( Hoon-soo Kim ),( Byung-soo Kim ),( Moon-bum Kim ),( Hyun-chang Ko ) 대한피부과학회 2019 대한피부과학회 학술발표대회집 Vol.71 No.1
The term “halo scalp ring (HSR)” describes an annular scalp alopecia that arises perinatally and may present as temporary and non-scarring alopecia or as permanent hair loss. Halo scalp ring usually occurs in newborns of primigravidas, especially after troublesome deliveries, and is associated with a caput succedaneum. A 2-year-old boy presented with annular hairless patch on occiput at birth. At first, the lesion was presented as a round hairless patch, but the central part of the lesion gradually improved and turned into and annular hairless patch. The baby was born to primigravida with vaginal induction delivery after long period of labor over 17 hours. He had no history of caput succedaneum or instrumental delivery. Dermoscopic findings showed thin hair shaft with normal scalp surface. Histopathological findings on scalp showed miniaturized hair follicles without perifollicular fibrosis, also fat necrosis with mild lobular pattern panniculitis was observed. The patient was diagnosed as halo scalp ring due to birth trauma and applied 3% topical minoxidil solution. The lesion gradually improved. To date, about 16 cases of halo scalp ring have been reported. Among them, most cases had history of caput succedaneum. Our case is a rare case of halo scalp ring without caput succedaneum which was proven by histological evaluation.