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Department founded
Hospital origins
Dermatology clinic
Dermatology patients
International Health Care Center
Nearest subway
Severance Hospital is the main teaching hospital of Yonsei University College of Medicine and part of the Yonsei University Health System. It stands on the university's Sinchon campus at 50-1 Yonsei-ro in Seodaemun-gu, western Seoul. The hospital traces its history to Jejungwon, founded in April 1885 by the American missionary physician Dr. H. N. Allen. It was renamed Severance Hospital in 1904, when a donation from Mr. Severance funded a new building. Severance Medical School became part of Yonsei University in 1957, the present main building was dedicated in 2005, and the Yonsei Cancer Hospital opened on the campus in 2014.
The Department of Dermatology was established at Severance Union Medical College in 1917. Its outpatient clinic is on the 5th floor of the Main Building. The department runs a special clinic for Behçet's disease and treats psoriasis and vitiligo with ultraviolet phototherapy using a device it developed itself. It also offers chemical peels and laser treatment. Its skin cancer surgeons treat melanoma and other skin cancers, and the Skin Cancer Clinic has performed Mohs micrographic surgery since July 2000. Dermatologists from other countries visit the department to observe surgery and train. Patients with atopic dermatitis, psoriasis, alopecia areata, vitiligo and bullous diseases can receive biologic treatments, and the department takes part in multinational multicentre drug trials. Its English page states that it sees around 100,000 patients a year. Prof. Oh Sang Ho has chaired the department since March 2023.
International patients are served by the International Health Care Center, opened in 1962. It provides interpretation in English, Chinese, Japanese, Russian, Arabic and Mongolian, cost estimates, direct billing to overseas insurers and patient-tailored meals. The hospital's English location page puts it a 15-minute walk from Exit 1 of Sinchon Station on Seoul Subway Line 2. Airport limousine bus 6011 from Incheon stops at Yonsei University, about five minutes away on foot.
Prof. Oh Sang Ho
Chair, Department of Dermatology, Yonsei University College of Medicine; Head of Dermatology, Severance Hospital
Oh Sang Ho is a professor at Yonsei University College of Medicine and has been chair of its Department of Dermatology, head of dermatology at Severance Hospital and director of the Cutaneous Biology Research Institute since March 2023. A 1999 graduate of Yonsei University College of Medicine, Oh completed dermatology residency at Severance Hospital (2000–2004) and spent 2014–2016 in long-term training at the University of Pennsylvania. Clinical areas include vitiligo, photosensitivity disorders, pigmentary disorders such as melasma, cutaneous lymphoma and psoriasis.
As published by the clinic or the accrediting body. Follow the source to check.

Accreditation
JCI
Joint Commission International — Hospital accreditation – Severance Hospital; accredited since 2007 (the hospital's Korean history page records accreditation on 2 May 2007 and re-accreditation on 3 May 2010)
Source
Accreditation
KOIHA
Korea Institute for Healthcare Accreditation (Ministry of Health and Welfare healthcare accreditation) — Hospital accreditation – Severance Hospital; renewed through the Ministry of Health and Welfare every four years
Source

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The Skin Cancer Clinic has performed Mohs surgery since July 2000. Every excision margin is examined under the microscope, and the technique is used for basal cell carcinoma, squamous cell carcinoma, melanoma and dermatofibrosarcoma protuberans.
Tuesday-morning sessions are set aside for melanoma patients, and treatment of confirmed cases starts within a week of the visit. Dermatology removes the tumour and coordinates lymph-node surgery, medical oncology and radiation oncology with other departments.
Care for plaque psoriasis, generalized pustular psoriasis and palmoplantar pustulosis. Options include ultraviolet phototherapy with a device developed in the department, and biologic treatment.
Long-term management of atopic dermatitis, eczema, itch and skin allergy. Biologic treatment, allergen-specific immunotherapy and clinical trials of new medicines are among the options.
Treatment of vitiligo, including phototherapy and biologic agents, as well as melasma, café-au-lait macules, Riehl's melanosis and photosensitivity disorders such as solar urticaria.
A special clinic for Behçet's disease, a chronic inflammatory disease, together with diagnosis and treatment of oral ulcers and other oral mucosal disorders.
Laser procedures and chemical peels for skin disease, pigmentation and skin aging, as part of the department's laser and cosmetic dermatology services.
Care for cutaneous lupus, dermatomyositis, scleroderma and cutaneous vasculitis, and for skin disease linked to blood cancers, such as graft-versus-host disease.
Diagnosis and treatment of hair loss, including alopecia areata, for which biologic treatment is offered.
Surgical and medical treatment of nail disorders, including nail-unit melanoma and nail bed flattening, as well as keloid surgery and treatment of recalcitrant warts.
7 photos of Severance Hospital – Department of Dermatology
Building
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BuildingServices the clinic says it offers to patients travelling from abroad.
Airport transfers
Interpreters
Dedicated patient coordinator
Medical records review and second opinion
Follow-up after you return home
Insurance and direct billing
Languages spoken

27 years since medical degree (1999); board-certified in dermatology in 2004 of experience
Professor of Dermatology; Chair, Department of Dermatology
Vitiligo, Photosensitivity disorders
Address
50-1 Yonsei-ro, 03722 Seodaemun-gu (Sinchon-dong), Seoul, South Korea
Weather
Seoul has four distinct seasons, with hot, humid summers that include a monsoon period from late June to August and cold, dry winters when temperatures often fall below freezing. Spring and autumn are mild and comparatively dry.
56 km
Incheon International Airport (ICN)
17 km
Gimpo International Airport (GMP)

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