Dermatology Reports 2019-02-19T09:31:48+01:00 Francesca Baccino Open Journal Systems <p><strong>Dermatology Reports</strong> is an online-only, international, Open Access peer-reviewed journal which publish scientific papers about skin diseases. Manuscripts dealing with research, biology,&nbsp;epidemiology,&nbsp;clinics of all skin-related diseases are welcome.&nbsp;<strong>Dermatology Reports</strong> publishes original&nbsp;articles, reviews, brief reports and case reports.</p> Dermoscopy is a new diagnostic tool in diagnosis of common hypopigmented macular disease: a descriptive study 2019-02-19T09:31:48+01:00 Khitam Al-Refu <p>One of the most frequent complaints in dermatology clinics is the eruption of hypopigmented patchy skin lesions. The aim of the study was to investigate the utility of dermoscopy in common hypopigmented macular diseases. Patients with the followings diseases were examined by dermoscopy: vitiligo, pityriasis alba, nevus depigmentosus, achromic pityriasis versicolor, idiopathic guttate hypomelanosis, and extragenital guttate lichen sclerosus. This study showed that these hypopigmented macular diseases might display specific dermoscopic features. In vitiligo, the mean dermoscopic features were the presence of a diffuse white glow with perifollicular pigment, perilesional hyperpigmentation, leukotrichia and the pigmentary network. In idiopathic guttate hypomelanosis, the characteristic features were the presence of multiple, shiny, scaly macules with well- and ill-defined edges borders that coalesced into polycyclic macules. For nevus depigmentosus, the mean features was hypopigmented patches with irregular border with a faint reticular network. For pityriasis alba, the fairly ill-demarcated hypopigmented macules with fine scales were the mean feature. In lichen sclerosus, there were white structureless areas, perilesional erythematous halo, follicular plugging and white chrysalis like structures. Dermoscopy of achromic pityriasis versicolor showed a fairly demarcated white area with fine scales localized in the skin creases.</p> 2018-12-21T00:00:00+01:00 ##submission.copyrightStatement## Trps1-deficient transplanted skin gave rise to a substantial amount of hair: Trps1 is unnecessary for hair development 2019-02-19T09:31:47+01:00 Yingzhe Zhang Tomoyuki Nakamura Fukumi Furukawa Yasuteru Muragaki <p>Trps1 is considered as an important gene involved in the interactions between the epithelial and mesenchymal cells during hair follicle morphogenesis. The number of hair follicles in Trps1 Knockout (KO) newborn mouse skin was significantly lower than that in wild-type (WT) newborn skin. To gain insight into the functional role of Trps1 in hair development, we transplanted Trps1 KO newborn mouse skin on the backs of nude mice and examined hair growth at day 42 after transplantation. Surprisingly, transplanted skin from Trps1 KO newborn mice gave rise to a substantial amount of hair, although the hair was softer than that of WT mice. Histological examination revealed that the diameter of both hair follicles and hair shafts were significantly lower, whereas the density of hair follicles showed no significant difference between the Trps1 KO and WT mice. We introduce mouse hair follicles as a fascinating model to study the functions of Trps1 in mouse hair growth and pathology. This model suggests that the function of Trps1 is unnecessary for the development of normal hair follicles and hair shafts, although the loss of Trps1 affects the diameters of hair follicles and hair shaft.</p> 2019-01-23T00:00:00+01:00 ##submission.copyrightStatement##