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Published in Ashfaq A Marghoob, Ralph Braun, Natalia Jaimes, Atlas of Dermoscopy, 2023
Anna Waśkiel-Burnat, Lidia Rudnicka, Małgorzata Olszewska, Adriana Rakowska, Ralph M. Trüeb, Isabel Kolm
In clinical practice, trichoscopy can be performed with the use of a hand-held dermatoscope (10-fold magnification).24 Videodermatoscopes, ranging from 20- to 1000-fold magnification, have the additional benefit of allowing more precise measurements of the visualized structures, such as hair shaft thickness, making them suitable for monitoring disease severity.24,25 Structures that are visualized by trichoscopy that are important in diagnosis include morphology of hair shafts, follicular openings, and perifollicular and interfollicular epidermis and cutaneous microvasculature.26 Nonpolarized light trichoscopy may be performed with any interface solution, including 90% isopropanol, 70% ethanol, ultrasound gel, or water.27 In some cases, it is beneficial to perform dry dermoscopy for improved visualization of the scale.6
Psychocutaneous Disorders
Published in Ayşe Serap Karadağ, Lawrence Charles Parish, Jordan V. Wang, Roxburgh's Common Skin Diseases, 2022
Kristen Russomanno, Vesna M. Petronic-Rosic
Laboratory studies: Physical examination and obtaining a thorough history are key in the evaluation and diagnosis of trichotillomania. Trichoscopy (i.e., dermatoscopic examination of the hair and scalp) may be helpful for supporting the diagnosis. Under magnification, hairs of various lengths can be appreciated in addition to other diagnostic clues, including flame hairs (i.e., remnants of anagen hairs), coiled hairs, and the v-sign (i.e., two small hairs emerging from one follicle). If there is diagnostic uncertainty, then a scalp biopsy may be performed to support the diagnosis.
Photography in Hair Diseases
Published in Rubina Alves, Ramon Grimalt, Techniques in the Evaluation and Management of Hair Diseases, 2021
Skin imaging techniques have significantly developed in recent years. Dermoscopy and video-dermoscopy are in wide use in dermatological practice. Trichoscopy is a method of hair image analysis, based on epiluminescent microscopy of the hair and scalp. The method allows visualization of hair shafts at high magnification based on video-dermoscopy of hair shafts and scalp skin. Structures which may be visualized by trichoscopy include hair shafts, hair follicle openings, the perifollicular epidermis, and cutaneous microvasculature. Numerous studies have shown that trichoscopy can be used not only for setting a proper diagnosis, but also allows monitoring treatment efficacy in several disorders (e.g., androgenetic alopecia, alopecia areata, DLE, etc.) [11–14]. Trichoscopic images are also used in telemedicine, and for this purpose the obtained trichoscopic images should be properly taken.
The clinical effect of JetpPeel-assisted topical minoxidil in the treatment of androgenetic alopecia: A randomized pilot study
Published in Journal of Cosmetic and Laser Therapy, 2018
Lin Gong, Linlin Bao, Tian Tian, Yuanhong Li
Objective evaluation: We chose a fixed site from hair-loss area of each patient to evaluate the hair growth condition by trichoscopy (at ×70 magnification) and oil–water test machine before treatment and every other month. The trichoscopy (CBS-1717, Taiwan, China) can measure the amount and diameter of hair in unit area (visual field of trichoscopy). (Figure 2)(15) The oil–water test machine can measure the oil secretion level in the fixed site. We marked the fixed site by a plastic ruler. First, we divided the patiant’ head into four quadrants, the line between two earlobes was the abscissa, the vertical line through the tip of nose was the ordinate. And we chose the same coordinate mark to measure at each follow-up visit.
Efficacious and safe management of thick scales, redness and flaky scalp condition using a specific shampoo containing urea, glycolic acid, salicylic acid, icthyol pale and laureth 9
Published in Cogent Medicine, 2018
Bianca Maria Piraccini, Nicolò Brandi, Aurora Alessandrini, Francesca Bruni, Michela Starace
After 5 days without washing their hair from the last generic shampoo (T11), the patients returned to be reevaluated and the clinical presentation was identical to the second visit (T5), with 8 patients (80%) presenting yellow scales, 2 patients (20%) having white scales and local erythema on the scalp and 10 patients (100%) presenting an excess amount of sebum on hair/scalp. Trichoscopy showed an increased number of scalp vessels in eight subjects (80%) and a stable number in two subjects (20%), with seven patients characterized by the SD pattern and two patients by the SP pattern. All 10 patients reported a worsening of the subjective and objective symptoms, even if the clinical presentation was the same.
Androgenetic alopecia; drug safety and therapeutic strategies
Published in Expert Opinion on Drug Safety, 2018
Ion G. Motofei, David L. Rowland, Daniela L. Baconi, Mircea Tampa, Maria-Isabela Sârbu, Stana Păunică, Vlad D. Constantin, Cristian Bălălău, Ioana Păunică, Simona Roxana Georgescu
Trichoscopy is a noninvasive technique which can help exclude other types of alopecia. In AGA, the increased diversity of hair shaft diameters with an increased number of vellus hairs establish the diagnosis [2,30]. In men, AGA must be differentiated from alopecia areata and telogen effluvium and in women from telogen effluvium and hyperandrogenism [2].