Hair casts or pseudonits are thin, elongated, cylindrical concretions that encircle the hair shaft and can be easily dislodged. A case of pseudonits in a 9-year-old girl is reported. Though not unusual, false diagnoses are common.
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http://dx.doi.org/10.4103/0974-7753.90834 | DOI Listing |
Polymers (Basel)
December 2024
School of Mechanical and Electrical Engineering, Changchun University of Science and Technology, Changchun 130022, China.
The curing process of hair-pin motor stator insulation is critical, as residual stress increases the risk of partial discharge and shortens a motor's lifespan. However, studies on the stress-induced defects during insulation varnish curing remain limited. This research integrates three-dimensional numerical simulations and experimental analysis to develop a curing model based on unsaturated polyester imide resin, aiming to explore the mechanisms of residual stress formation and optimization strategies.
View Article and Find Full Text PDFMedicina (Kaunas)
November 2024
Dermatology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Policlinico S. Orsola-Malpighi, 40138 Bologna, Italy.
Pityriasis rubra pilaris (PRP) presents a diagnostic challenge due to its varied clinical manifestations and the scarce literature on scalp involvement. This article presents a case report of a 59-year-old female with PRP solely affecting the scalp, detailing its clinical, trichoscopic, and histopathological features. Trichoscopy revealed a novel finding of white-silvery scales forming hair casts with a triangular shape, distinct from the existing literature.
View Article and Find Full Text PDFInt J Womens Dermatol
October 2024
Dermatology Department, Habib Thameur Hospital, Tunis, Tunisia.
Pediatr Dermatol
November 2024
Department of Internal Medicine, Division of Dermatology, Dell Medical School, University of Texas, Austin, Texas, USA.
Cureus
May 2024
Pediatric Rheumatology, Hospital para el Niño Poblano, Puebla, MEX.
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