Baumann Skin Type in the Korean Male Population.

Background: Research into the Baumann skin type (BST) has recently expanded, with growing interest in the development of an efficient and effective skin type classification system for better understanding of this skin condition.

Objective: We aimed to identify male-specific skin type characteristics with investigation into the distribution of BST by age and region in the Korean male population and to determine the intrinsic and extrinsic factors related to skin type.

Methods: A questionnaire was administered to collect information about age, region, working behavior, drinking behavior, smoking behavior, usual habit of sun protection, medical history, and the BST which consisted of four parameters; oily (O) or dry (D), sensitive (S) or resistant (R), pigmented (P) or non-pigmented (N), and wrinkled (W) or tight (T).

Effect of a Tranexamic Acid, Kojic Acid, and Niacinamide Containing Serum on Facial Dyschromia: A Clinical Evaluation.

Background: Stubborn dyschromia such as melasma and post-inflammatory hyperpigmentation (PIH) are leading causes for cosmetic consultation. Topical treatment is challenging, using a range of modalities, to stop, hinder, and/or prevent steps in the pigment production process. Tranexamic acid (TXA), a potent plasmin inhibitor, is proposed to control pigmentation by inhibiting the release of inflammatory mediators involved in triggering melanogenesis.

Liponeurofibroma: Clinicopathological features and histogenesis.

A neurofibroma is a common cutaneous benign tumor of neural origin. Various histological variants have been reported. Recently, sporadic reports of fatty variants have been reported but their clinicopathological features have not been well studied.

Baumann Skin Type in the Korean Female Population.

Background: To meet the need for a subspecialized skin type system, the Baumann skin type (BST) system was proposed.

Objective: To evaluate the distribution of BST types and influencing factors among Korean women.

Methods: BST questionnaires were administered to 1,000 Korean women.

Clinical Features and Awareness of Hand Eczema in Korea.

Background: Hand eczema is one of the most common skin disorders and negatively affects quality of life. However, a large-scale multicenter study investigating the clinical features of patients with hand eczema has not yet been conducted in Korea.

Objective: To identify the prevalence of various hand diseases, which is defined as all cutaneous disease occurring in hands, and to investigate the clinical features of patients with hand eczema and the awareness about hand eczema in the general population and to compare the prevalence of hand eczema between health care providers and non-health care providers.

A herpes simplex virus infection secondary to acupuncture and cupping.

Acupuncture and cupping have a public reputation as being safe even though these practices can lead to complications such as trauma or infection. We report here on a case of herpes simplex virus (HSV) infection secondary to acupuncture and cupping in a 56-year-old woman. The patient, who had a history of acupuncture and cupping on her left forearm for treating her myalgia, developed painful papules.

Altered epidermal lipid layers induced by long-term exposure to suberythemal-dose ultraviolet.

Background: Although several studies have reported on the biological effects of ultraviolet (UV) radiation, there have been only a few reports on the changes in epidermal lipids following long-term UV irradiation at suberythemal dose (SED), to which people are usually exposed during their lifetime.

Objectives: To investigate the changes of epidermal lipid properties after long-term UV radiation with SED.

Materials And Methods: Hairless mice were irradiated three times weekly for 15 weeks at an SED of UV (UVB: 20 mJ/cm(2) ; UVA: 14 J/cm(2) ).

Treatment of atrophic scars with fractional photothermolysis: short-term follow-up.

Background: Various modalities have been used to treat scars, but limited efficacy and problematic side effects have restricted their application.

Objective: To determine the effectiveness and safety of fractional photothermolysis treatment of various atrophic scars in Korean patients.

Methods: Fifty-nine patients with atrophic scars (caused by acne, trauma, herpes zoster, and burns) were treated with fractional photothermolysis using either Fraxel™ SR 750 or Fraxel™ SR 1500 instruments.

A case of membranous lipodystrophy observed in lichen amyloidosis.

Membranous lipodystrophy is characterized by the presence of microcysts lined by amorphous, eosinophilic material with an arabesque appearance. We experienced a case of a 72-year-old man who had dark brownish, pruritic papules on the arms, legs, and back. Histopathologic examination of a biopsied lesion showed homogeneous, eosinophilic material in the papillary dermis, as well as membranous lipodystrophy.

Increased expression of nerve growth factor receptor and neural endopeptidase in the lesional skin of melasma.

Background: Characteristic clinical features of melasma are symmetry of hyperpigmentation and distribution related to trigeminal nerves, which suggest that the neural involvement could play a part in the pathogenic mechanisms of pigmentation.

Objective: To evaluate whether some neuropeptides and neurotrophins and their receptors were associated with the pathogenesis of melasma.

Methods: To investigate the involvement of neuronal system and neuropeptides in melasma, we examined the expression of nerve growth factor receptor (NGFR) and neural endopeptidase (NEP) in melasma lesional and nonlesional skin.

Treatment of striae distensae with fractional photothermolysis.

Background: Striae distensae are dermal scars characterized by flattening and atrophy of the epidermis. Although many treatment modalities have been tried with variable results, most have been disappointing.

Objective: To determine whether striae distensae might respond to fractional photothermolysis.

Autosomal recessive type 2 pseudoxanthoma elasticum presenting with generalized skin laxity.

Herein, we describe a sporadic case of recessive type 2 pseudoxanthoma elasticum. A 26-year-old woman without family history presented with cutis laxa-like marked wrinkling involving the whole-body and a serpiginous streak on the upper left arm. She denied any other systemic problems related to difficulty with visual acuity or vascular disease.

Angioimmunoblastic T cell lymphomas: frequent cutaneous skin lesions and absence of human herpes viruses.

Background: Angioimmunoblastic T-cell lymphoma (AITL) is a complex lymphoproliferative disorder and often mimics a viral infection with frequent skin involvement. Epstein-Barr virus (EBV) and human herpes virus (HHV)-6 are reported to be associated with AITL, but there are conflicting results.

Objective: We evaluated the association of EBV and HHV-6 with AITL.

Topical immunomodulators are effective for treatment of vitiligo.

Vitiligo is a common, acquired, depigmenting disease of the skin. Although the pathogenesis of vitiligo is still unclear, it is postulated that topical immunomodulators exert therapeutic effects on treatment of vitiligo. We reviewed the treatment of vitiligo with topical immunomodulators and topical steroids to evaluate the efficacy of immunomodulators in treatment of vitiligo.