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P259 : Application of parallel-polarized light(PPL) images with green light in various skin diseases
( Heesang Kye ),( Tae Hyung Ryu ),( In Hyuk Kwon ),( Dai Hyun Kim ),( Jae Eun Choi ),( Soo Hong Seo ),( Young Chul Kye ),( Hyo Hyun Ahn ) 대한피부과학회 2014 대한피부과학회 학술발표대회집 Vol.66 No.2
Background: The characteristics of skin can be analyzed by parallel-polarized light(PPL) photography. PPL image with green light-emitting diodes(LED) show more quantitative difference than white depending on the state of skin. Objectives: To determine skin diseases appropriate for PPL images with green and white LED. Methods: For 10 cases of each disease; acne, atopic dermatitis, nummular eczema, rosacea, seborrheic dermatitis, pruritus and xerotic dermatitis, on every lesion and normal skin, PPL images were taken with green and white LED and converted to CIELAB coordinates. Skin hydration level, disease severities and clinical grading of dryness were evaluated. Results: In atopic dermatitis, severity had correlation with a* (r=-0.67420, p=0.0325) and b* (r=0.67420, p=0.0325) in green LED. In rosacea, dryness of lesion had correlation with severity (r=0.67776, p=0.0154) and L* (r=-0.71758, p=0.0086), a* (r=0.67941, p=0.0151) in green LED. In xerotic dermatitis, severity had correlation with dryness (r=0.98837, p<0.0001) and skin conductance (r=-0.78377, p=0.0073) of lesion. Dryness of lesion had correlation with L* (r=-0.69228, p=0.0265), a* (r=0.69228, p=0.0265) and b* (r=-0.69228, p=0.0265) in green LED. Conclusion: In atopic dermatitis, rosacea and xerotic dermatitis, dryness and skin conductance value had significant correlations with some of L*, a*, b* in green LED, and disease severity. Applied properly, PPL images with green LED could be utilized for evaluation of various skin diseases.
( Heesang Kye ),( Dai Hyun Kim ),( Soo Hong Seo ),( Hyo Hyun Ahn ),( Young Chul Kye ),( Jae Eun Choi ) 대한피부과학회 2015 Annals of Dermatology Vol.27 No.3
Tinea incognito is a dermatophytic infection induced by immunosuppressive agents that lacks the classic features of a typical fungal infection. Although the treatment of tinea incognito is simple and relatively easy, its clinical manifestation varies and can masquerade as various skin disorders, causing misdiagnosis and thus preventing prompt and appropriate treatment. Here, we report an interesting case of tinea incognito occurring after topical steroid administration in an immunosuppressed patient with dermatitis artefacta. A 40- year-old female patient who had been taking systemic glucocorticoid for 4 years for chronic inflammatory demyelinating polyneuropathy presented with itching multiple erythematous erosive lesions on the face and upper chest for 2 months. Initial biopsy produced nonspecific findings. The skin lesion was aggravated and became polycyclic and erythematous; after azathioprine was added, her chronic inflammatory demyelinating polyneuropathy became aggravated. A second biopsy confirmed hyphae in the cornified layer. Complete remission was achieved after admonishing oral terbinafine and topical amorolfine. (Ann Dermatol 27(3) 322∼325, 2015)
( Tea Hyung Ryu ),( Heesang Kye ),( Jae Eun Choi ),( Hyo Hyun Ahn ),( Young Chul Kye ),( Soo Hong Seo ) 대한피부과학회 2018 Annals of Dermatology Vol.30 No.1
Background: Although squamous cell carcinoma (SCC) and basal cell carcinoma (BCC) can be easily diagnosed clinically, proper diagnosis is sometimes difficult when based on clinical information alone. Objective: To know what causes clinical misdiagnosis between SCC and BCC, and evaluate whether dermoscopy can improve diagnostic accuracy. Methods: Clinical and dermoscopic photographs of inversely diagnosed cases (histologically confirmed BCC with a clinical impression of SCC or vice versa) were randomly presented to six dermatologists and the reasons for each correct or incorrect diagnosis were analyzed. Results: Among 154 cases (SCCs or BCCs), 13 cases were inversely diagnosed; 9 SCCs were clinically misdiagnosed as BCC and 4 BCCs were clinically misdiagnosed as SCC. Clinically, scales, pigmentation and rolled border were meaningful factors to discern two carcinomas. Scales without both pigmentation and rolled border was favored for SCC, but BCC favored vice versa. Ulceration, telangiectasia and translucency contributed as confusing factors for proper diagnosis. Dermoscopy improved overall diagnostic accuracy to odds ratio 2.86. Conclusion: SCC has a higher tendency to be clinically misdiagnosed as BCC than vice versa. Pigmentation and rolled border are factors causing misdiagnosis of SCC as BCC and BCC may be misdiagnosed as SCC in the presence of scaling. Dermoscopy seems to improve the clinical diagnostic accuracy but has limitations for some ambiguous lesions. (Ann Dermatol 30(1) 64∼70, 2018)
( In Hyuk Kwon ),( Dong Won Lee ),( Tae Hyung Ryu ),( Heesang Kye ),( Jae Eun Choi ),( Soo Hong Seo ),( Young Chul Kye ),( Hyo Hyun Ahn ) 대한피부과학회 2015 대한피부과학회 학술발표대회집 Vol.67 No.1
H2 anti-histamines are one of the widely used drugs for the treatment of gastrointestinal disease. Previous studies of H2 anti-histamine in the treatment of verruca have demonstrated good efficacy. A 51-year-old man with a 1 year history of discoid lupus erythematosus (DLE) was treated with hydroxychloroquine and colchicine and maintained stable disease. He presented with multiple viral warts on both hands for several years. He started high dose of H2 anti-histamine treatment (Ranitidine 2700mg,daily). After 7 weeks of treatment, the patient showed partial remission of viral warts, but reported worsening of DLE lesions. After another 3 weeks treatment, DLE lesions were much exacerbated and H2 anti-histamine treatment was stopped. H2 anti-histamines have the capacity to modulate a number of immune functions when given in high dosage (30-40 mg/kg/day). They block the triggering of suppressor T lymphocytes and inhibit the regulation of cytotoxic T cells. Lupus erythematosus is autoimmune disease in which the body’s immune system mistakenly attacks healthy tissue and it can be affected by the immunoregulatory effects of H2 anti-histamine. High dose H2 anti-histamine could be an effective treatment modality for verruca. However, the possibility of, H2 anti-histamine exacerbating cutaneous disease activity in patients with SLE should be taken into account when using the drugs.
( Dong Won Lee ),( Tae Hyung Ryu ),( In Hyuk Kwon ),( Heesang Kye ),( Soo Hong Seo ),( Hyo Hyun Ahn ),( Young Chul Kye ),( Jae Eun Choi ) 대한피부과학회 2015 대한피부과학회 학술발표대회집 Vol.67 No.1
Bowen’s disease (BD) is a squamous cell carcinoma in situ with potential for significant lateral spread. It clinically presents as well-demarcated erythematous plaques. BD may occur at any cutaneous site, frequently on lower extremities and on the head and neck. The disease can be aroused on both occasions of sun-exposed and unexposed sites. A 36-year-old man presented with Asymptomatic well-demarcated, flesh-colored velvety plaque on the right middle fingertip. He was an office worker who is accustomed to routine act of typing. Clinically it was shown as hand eczema rather than BD. It was not recognizable in meantime but its bizarre features could be seen when swollen up by water. The diagnosis was confirmed by histopathologic findings as a Bowen’s disease. Onwards, HPV typing was done and the following result of HPV Genotype 51 (High risk) came out. Interestingly, the finger right beside had the lesion of the same feature as the other. The excision biopsy was done to this lesion and the histopathologic findings came out as wart. The HPV is assumed as an etiologic factor for the first BD lesion. Since the lesion is located on the tip of the fingers, the cryotherapy is currently being held instead of complete excision showing gradual resolution. Herein, we report an interesting case of Bowen’s disease on the fingertip associated with HPV 51.
Eruptive syringoma in systemic lupus erythematosus
( In Hyuk Kwon ),( Dong Won Lee ),( Tae Hyung Ryu ),( Heesang Kye ),( Jae Eun Choi ),( Soo Hong Seo ),( Young Chul Kye ),( Hyo Hyun Ahn ) 대한피부과학회 2015 대한피부과학회 학술발표대회집 Vol.67 No.1
Syringoma is a benign adnexal neoplasm formed by well-differentiated ductal structures. Generalized eruptive syringoma is a clinically rare variant of syringoma, which presents as widespread papular eruptions. A 49-year-old woman presented with a 1-year history of asymptomatic numerous erythematous to brown colored papules on face, anterior neck and anterior trunk. The lesion was aggravated one month ago. There was no family history of similar eruptions. She has been treated for systemic lupus erythematosus (SLE) at division of rheumatology. The histopathology showed a proliferation of eccrine ductal structures in the upper dermis resembling tadpoles. The definitive diagnosis of eruptive syringoma was made based on the distinctive histopathological features. The etiology of eruptive syringoma is unclear. It has been hypothesized that these lesions demonstrate reactive eccrine gland proliferation following inflammatory conditions. Previous studies reported the development of eruptive syringoma associated with Down’s syndrome, neoplasms or diabetes mellitus. However, the development of eruptive syringoma has not been reported in SLE patients. Herein, we reported the first case of eruptive syringoma developed in SLE patient.