Retraction: Three Cases of Autoimmune Progesterone Dermatitis.

[This retracts the article on p. 479 in vol. 29, PMID: 28761298.

Factors Influencing the Treatment Effect of Superelastic Wire Orthonyxia for Nail Plate Deformity.

Background: Orthonyxia is an effective, noninvasive treatment for transverse nail curvature deformity.

Objective: To discover the factors influencing treatment results of superelastic wire orthonyxia (SEWO).

Material And Methods: A retrospective study was conducted using clinical records of patients treated with SEWO.

Ets1 suppresses atopic dermatitis by suppressing pathogenic T cell responses.

Atopic dermatitis (AD) is a complex inflammatory skin disease mediated by immune cells of both adaptive and innate types. Among them, CD4+ Th cells are one of major players of AD pathogenesis. Although the pathogenic role of Th2 cells has been well characterized, Th17/Th22 cells are also implicated in the pathogenesis of AD.

Usefulness of the Psoriatic Arthritis Screening and Evaluation Questionnaire to Monitor Disease Activity in Management of Patients with Psoriasis: Findings from the EPI-PSODE Study.

Background: Psoriasis and psoriatic arthritis (PsA) are included in the group of immune-mediated inflammatory diseases (IMIDs) caused by systemic inflammation; however, indicators for monitoring inflammatory activity in patients with psoriasis, such as the Psoriasis Area and Severity Index (PASI), are limited.

Objective: To determine whether the Psoriatic Arthritis Screening and Evaluation (PASE) questionnaire can be used to monitor disease activity in patients with psoriasis.

Methods: This was a multicenter, noninterventional, cross-sectional study.

Sensitivity and Usefulness of VE1 Immunohistochemical Staining in Acral Melanomas with Mutation.

Background: Acral melanomas are known to have a low frequency of mutation, in contrary to higher mutation. Recently, VE1 immunostaining was reported to have a good correlation with mutation status.

Objective: We aimed to evaluate the clinicopathological features of -mutated acral melanomas and validate the correlation of the VE1 immunohistochemical stains in those cases.

Paraneoplastic Pyoderma Gangrenosum Associated with Rectal Adenocarcinoma.

Pyoderma gangrenosum (PG) is a rare chronic neutrophilic dermatosis characterized by painful necrotic ulceration. The most common diseases associated with PG are inflammatory bowel disease, certain rheumatologic and hematologic diseases, and malignancy. Here, we describe the case of a 60-year-old man who presented with pruritic and painful erythematous ulcerative macules and patches on both lower extremities, and was diagnosed with PG based on his clinical and histologic features.

Mortality and Comorbidity Profiles of Patients with Bullous Pemphigoid in Korea.

Background: Bullous pemphigoid (BP) is a common autoimmune-mediated blistering skin disease that is significantly associated with mortality and morbidity. However, few studies regarding the mortality and comorbidity profiles of BP have been reported in Korea.

Objective: To evaluate and compare the mortality, comorbidity profiles, and risk factors between patients with BP who visited our clinic and an age-matched general population of Korea.

Three Cases of Autoimmune Progesterone Dermatitis.

Autoimmune progesterone dermatitis is a rare cyclic premenstrual reaction to progesterone produced during the luteal phase of the menstrual cycle. The clinical symptoms of autoimmune progesterone dermatitis overlap with other forms of dermatosis such as erythema multiforme, eczema, fixed drug eruption, urticaria, and angioedema. We experienced 3 cases of autoimmune progesterone dermatitis.

The Clinical Profile of Patients with Psoriasis in Korea: A Nationwide Cross-Sectional Study (EPI-PSODE).

Background: Psoriasis is an immune-mediated, chronic inflammatory disease affecting multiple aspects of patients' lives. Its epidemiology varies regionally; however, nationwide epidemiologic data on psoriasis depicting profile of Korean patients has not been available to date.

Objective: To understand nationwide epidemiologic characteristics and clinical features of adult patients with psoriasis visited university hospitals in Korea.

Four Years Prospective Study of Natural History of Atopic Dermatitis Aged 7~8 Years at an Individual Level: A Community-Based Survey by Dermatologists' Skin Examination in Childhood.

Background: The age-dependent change in atopic dermatitis (AD) at an individual level has mostly performed in a hospital-setting.

Objective: We evaluated the age-dependent change of AD symptoms at an individual level in a community-setting.

Methods: For the diagnostic accuracy, all participants of schoolchildren were received skin examination by dermatologists (twice a year for the same group), instead of questionnaire-based surveys.

Algorithm to select optimal systemic anti-psoriatic drugs in relation with patients' Psoriasis Area and Severity Index score for plaque psoriasis.

This study sought to develop a therapeutic algorithm for selecting the optimal systemic drugs to treat moderate to severe psoriasis, based on the patient's Psoriasis Area Severity Index (PASI) score. Data from 191 patients undergoing treatment for plaque psoriasis were retrospectively analyzed. Pre- and post-treatment PASI scores were compared across patients treated with acitretin of retinoic acid (RA; n = 95), methotrexate (MTX; n = 41) or cyclosporin A (CsA; n = 55).

Cutaneous Lymphoma in Korea: A Nationwide Retrospective Study.

The epidemiological and clinicopathological features of cutaneous lymphoma may vary by geographical area. However, only a few large-scale epidemiological studies of cutaneous lymphoma have been performed, mainly in the USA and Europe. This aim of this study was to determine the recent characteristics of cutaneous lymphoma in Korea according to the WHO/EORTC classification.

Amelanotic Acral Melanoma Associated with KIT Mutation and Vitiligo.

Amelanotic acral melanoma is rare and difficult to diagnose, both clinically and pathologically. KIT mutations are frequently found in acral melanomas and are considered a risk factor for poor prognosis. The presence of vitiligo in melanoma has been reported, and KIT is thought to be partly responsible for the dysfunction and loss of melanocytes observed in vitiligo.

Myxoid Cellular Neurothekeoma: A New Entity of S100-Negative, CD68-Positive Myxoid Neurothekeoma.

Neurothekeoma is a rare cutaneous neoplasm, occurring as a cutaneous papule or nodule on the face, shoulders, and upper extremities. Neurothekeoma has been subclassified as either the myxoid, cellular, or mixed type, depending on the amount of myxoid matrix and on immunohistochemical analysis. We observed a clinical case with conflicting histopathological and immunohistochemical findings.

The efficacy of intense pulsed light for treating erythematotelangiectatic rosacea is related to severity and age.

Background: Rosacea is a chronic cutaneous disease. Therapeutic modalities should be chosen based on the identified sub-types and clinical features in each patient. Vascular lasers, including intense pulsed light (IPL), are reportedly safe and effective in treating erythematotelangiectatic rosacea (ETR).

Brain involvement by leprosy presenting as a frontal cystic lesion.

Leprosy has a predilection for peripheral nerves and is not considered to involve the CNS. The idea that the CNS is exempt from Mycobacterium leprae bacilli has been suspected from a clinical perspective or CSF study in leprosy patients. However, there has been no direct evidence for CNS involvement by leprosy in a living patient.