Normal Trichoscopic Findings after Hair Transplantation in Androgenetic Alopecia: A Prospective Case Series.

Background: Trichoscopy can be very useful for evaluation for hair transplantation (HT), helping rule out simulators of androgenetic alopecia (AGA). There are only a few reports about normal trichoscopic findings after HT.

Objective: The aim of this study was to evaluate donor and recipient area trichoscopy after FUE in HT without complications in AGA patients.

Neomycin: sources of contact and sensitization evaluation in 1162 patients treated at a tertiary service.

Background: Neomycin is used in several over-the-counter pharmaceutical formulations in Brazil. In Europe and Canada, where it is not freely available, its sensitization frequency is lower than in the United States, where this does not occur.

Objective: To present the frequency of sensitization to neomycin observed in a tertiary hospital and the pharmaceutical formulations sold in Brazil containing neomycin.

Reconstruction of Scalp Anterior Hairline with Tissue Expansion and Skin Flap.

Introduction: Cutaneous defects involving the frontal region and anterior hairline of the scalp can result from congenital or acquired conditions. The negative esthetic impact can cause disturbances in the psychic and social sphere of the patient, causing problems in interpersonal relationships and in the body image itself. The use of skin expanders is usually effective in this region due to the bone base providing support and stability for its use.

Anagen Effluvium after Therapeutic Scalp Surgery: Unreported Phenomenon.

Introduction: Many procedures are performed on the scalp, such as excision of pilar and sebaceous cysts, melanocytic nevi, and reduction surgery for scarring alopecia, among others. In hair transplants, telogen effluvium is often reported 3 months after surgery; however, hair loss usually happens much earlier, around second week after the procedure, not compatible with the time required for hair to enter telogen and exogenous phases in normal conditions.

Case Reports: We report 3 cases of anagen hair loss 4 weeks after surgeries, with perilesional trichoscopy suggesting anagen effluvium, with typical signs such as black dots and exclamation hairs.

Acute telogen effluvium triad after resolution.

Five cases of telogen effluvium undergoing resolution are shown, with the presence of frontal, bitemporal, and occipital hair regrowth. Diagnosing acute telogen effluvium after the end of the active phase can be challenging, especially when the pull test is negative. The differential diagnosis includes alopecia areata and traction alopecia.

Effect of Oral Minoxidil for Alopecia: Systematic Review.

Patients with major presentations of alopecia experience physically harmful effects and psychological comorbidities, such as depression and anxiety. Oral minoxidil (OM) has been suggested by dermatologists as a potential remedy; however, its effectiveness remains unclear. This systematic review aims to collate published studies and to analyze the effect of OM among patients diagnosed with any type of alopecia.

Oxybutynin in primary hyperhidrosis: A long-term real-life study.

Hyperhidrosis is a condition of excessive sweating beyond physiological parameters that can seriously impair quality of life. This study aims to evaluate the oral oxybutynin effectiveness in hyperhidrosis, besides its tolerance and safety. In a real-life long-term study, 30 patients with primary hyperhidrosis and Hyperhidrosis Disease Severity Scale (HDSS) with score of at least two were submitted to a questionnaire to assess demographic data, HDSS and side effects of oxybutynin.

Atrichia with Papular Lesions: Importance of Histology at an Early Disease Stage.

We report the case of a 5-year-old girl born from consanguineous parents, presenting with alopecia universalis since the age of 8 months, without papules or cysts over the scalp or body. The goal of this paper is to emphasize the relevance of histopathology for the early diagnosis of atrichia with papular lesions in children with alopecia universalis, in settings where genetic testing may not be available.

Do you know this syndrome? Ichthyosis associated with neurological condition and alteration of hairs.

Trichothiodystrophy refers to a heterogeneous group of rare genetic diseases that affects neuroectodermal-derived tissues with multisystem involvement. The hallmark of these syndromes is the deficiency of sulfur in hair matrix proteins, leading to short and brittle hair. Few cases of this rare disorder have been published.

Behçet's disease: review with emphasis on dermatological aspects.

Behçet's disease is a systemic vasculitis characterized by attacks of acute inflammation, which can affect almost every vascularized area of the body. There is a close correlation between the geographical distribution of HLA-B51 and its prevalence. In the etiopathogenesis there are indications of genetic susceptibility associated with environmental influence.

Histologic correlation of VEGF and COX-2 expression with tumor size in squamous cell carcinoma of the larynx and hypopharynx.

The prognosis and survival of patients with laryngeal and hypopharyngeal squamous cell carcinoma (SCC) are related to the clinical staging. Tumor growth and metastasis are closely related to angiogenesis. Vascular endothelial growth factor (VEGF) and cyclooxygenase 2 (COX-2) are intimately related to the angiogenic process in which the blood supply required for neoplastic evolution is ensured.

Program for Contact Allergen Research (PPAC) - a new tool for dermatologists.

In Brazil there is no classification of dermatological products by the presence of vehicles with sensitizing potential. The objective of this study is to create a database to classify such products based on the absence of the selected allergens, aiming at making it available for medical consultation. We conducted an observational study, from the content of labels and/or inserts on the composition of 966 dermatological products in the Brazilian market.