Publications by authors named "Young-Chul Kye"
Background: Several experimental methods for evaluating dermal structures exist; however, most of these are not used in dermatology clinics because of cost and functional limitations.
Objective: To propose a simple, non-invasive method for dermal structure evaluation using a green light-emitting diode (LED) with cross-polarized light (CPL) imaging and compare the quality of the images taken using either green or white LED.
Materials And Methods: Skin specimens were taken from fifteen cadavers.
Background: Proper assessment of dermal collagen fibers by dermatologists and researchers is essential. Histologic evaluation methods have limitations. We present a simple method for measurement of collagen fibers in human skin using Masson's trichrome staining.
View Article and Find Full Text PDFBackground: Since the first description of adult blaschkitis (AB), the existence of this entity has been a matter of great debate.
Objectives: To compare clinicopathological features of lichen striatus (LS) and AB cases.
Materials And Methods: We retrospectively reviewed the clinicopathological features of patients who clinically showed linear inflammatory dermatosis along Blaschko's lines based on a skin biopsy registry.
Hidradenitis suppurativa (HS) is a chronic, relapsing, inflammatory skin disorder. Although several epidemiological studies have been conducted in Western countries, such data regarding Asian populations are scarce. In this study, we sought to investigate the demographic and clinical features of HS in Korea.
View Article and Find Full Text PDFArticle Synopsis
- Melasma is a common skin condition that is difficult to treat, but the low-fluence 1064-nm Q-switched neodymium-doped yttrium aluminum garnet laser (QSNY) is becoming the preferred treatment in Asia.
- A study involving 40 Korean patients treated with this laser showed a significant improvement in melasma symptoms, with an average decrease of 54.23% in severity scores after about 10 treatment sessions.
- While most patients experienced positive results, there were some cases of side effects like hypopigmentation and rebound hyperpigmentation, suggesting the treatment is generally effective but still carries some risks.
Skin biopsy for AK diagnosis is usually performed on only a limited part of the whole lesion. Therefore, a clinical diagnosis is important. According to a study, there is no significant correlation between histopathological and clinical classification system.
View Article and Find Full Text PDFArticle Synopsis
- Rosacea is a common chronic skin condition that has been studied mostly in Caucasian populations, with limited research in Asian groups, prompting a study involving 580 patients in Korea.
- The findings indicate that 83.8% of the patients had a single subtype of rosacea, with erythematotelangiectatic rosacea (ETR) being the most common, and the majority (71.9%) had mild severity.
- Emotional changes and stress were identified as the main factors that aggravated the condition, and nearly half of the patients were not well-informed about rosacea, highlighting the need for better education and awareness.
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 ) were randomly presented to six dermatologists and the reasons for each correct or incorrect diagnosis were analyzed.
There are only a few anecdotal case reports about Bowen's disease (BD) treated with ingenol mebutate (IM) gel but no clinical study has been published yet. The aim of this study was to evaluate the effectiveness of IM gel in the treatment of BD and to observe the therapeutic efficacy of IM alone or IM with ablative fractional laser pretreatment. Nineteen patients with BD or squamous cell carcinoma in situ confirmed by skin biopsy were enrolled.
View Article and Find Full Text PDFAged skin is reported to be associated with unattractive skin color changes and solar elastosis. However, comparative studies have not documented the possible correlation between the two factors. This study investigated the plausible relationship between the facial skin color of elderly Asians and solar elastosis.
View Article and Find Full Text PDFBackground: Parallel-polarized light (PPL) photography evaluates skin characteristics by analyzing light reflections from the skin surface.
Objective: The aim of this study was to determine the significance of quantitative analysis of PPL images in rosacea patients, and to provide a new objective evaluation method for use in clinical research and practice.
Methods: A total of 49 rosacea patients were enrolled.
Along with increasing public concerns on acne and its complications, increasing treatment options seem to lead more acne patients to clinics globally, including Korea. The aim of the present study was to investigate the number and distribution of acne patients according to age group by analyzing number and age of outpatients from several general hospitals in Korea. Two retrospective multicenter studies including 14 general hospitals for a maximum of 10 years were conducted by medical chart review of acne patients.
View Article and Find Full Text PDFBackground: Pigmented purpuric dermatoses (PPD) are a spectrum of disorders characterized by a distinct purpuric rash. Although PPD can be easily diagnosed, the disease entity remains an enigma and a therapeutic challenge.
Objective: The purpose of this study was to investigate the characteristics and clinical manifestations of PPD and to elucidate the relationship between assumed etiologic factors and the clinical manifestations of PPD and treatment responses.
Article Synopsis
- - Tinea incognito is a fungal skin infection that often doesn't show the usual signs, making it tricky to diagnose, especially in immunosuppressed patients who may be on steroids.
- - A case study was presented about a 40-year-old woman with a history of taking glucocorticoids for a nerve condition, who developed itchy skin lesions that were initially misdiagnosed.
- - After multiple biopsies and treatment adjustments, including the introduction of terbinafine and amorolfine, the patient ultimately achieved complete remission from the infection.
Background: The rapid development of information and communication technology has replaced traditional books by electronic versions. Most print dermatology journals have been replaced with electronic journals (e-journals), which are readily used by clinicians and medical students.
Objective: The objectives of this study were to determine whether e-readers are appropriate for reading dermatology journals, to conduct an attitude study of both medical personnel and students, and to find a way of improving e-book use in the field of dermatology.
Background: Aggravated melasma after treatment is vulnerable to stimulation, can easily deteriorate, and may be distressing without proper management.
Objective: To retrospectively assess the effectiveness and safety of combination therapy using low-fluence Q-switched neodymium-doped yttrium aluminum garnet (Nd:YAG) laser (QSNY) and long-pulse Nd:YAG laser (LPNY) (dual toning) in patients with rebound melasma.
Materials And Methods: A total of 30 patients with aggravated melasma after previous therapy who were treated with dual toning were enrolled.