A 56-year-old white man with multiple, discrete nonfollicular papules on the neck is presented. Clinical and histopathologic features were compatible with the entity of white fibrous papulosis of the neck (WFPN). Pseudoxanthoma elasticum-like papillary dermal elastolysis (PXE-PDE) and WFPN are further clinicopathologic patterns of intrinsic aging. Clinically, WFPN is characterized by isolated, whitish papules, whereas those of PXE-PDE are yellowish and often coalesce to form "cobblestone" plaques. Our case showed clearly marginated whitish papules. The major histopathologic feature of WFPN is superficial dermal fibrosis with scant elastolysis; in PXE-PDE, there is papillary dermal elastolysis but no sign of fibrosis. No recurrence was performed in the 3 years' follow-up in our case. Surgical treatment may be considered in such cases with well-circumscribed lesions.
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http://dx.doi.org/10.3109/15569527.2010.521223 | DOI Listing |
Alzheimers Dement
December 2024
Biobank for Aging Studies of the University of São Paulo, São Paulo, Brazil.
Background: Previous studies suggest an association between Alzheimer's disease and carotid artery atherosclerosis. However, the association between atherosclerotic carotid plaque composition and Alzheimer's disease pathology (neuritic plaques and neurofibrillary tangles) has not been explored yet.
Method: Carotid arteries were dissected and the segments with the largest obstruction in the carotid bifurcation, and the common and internal carotid arteries were obtained.
Biomimetics (Basel)
December 2024
Department of Industrial Engineering, University of Padova, Via Marzolo 9, 35131 Padova, Italy.
In recent years, the demand for orthopedic implants has surged due to increased life expectancy, necessitating the need for materials that better mimic the biomechanical properties of human bone. Traditional metal implants, despite their mechanical superiority and biocompatibility, often face challenges such as mismatched elastic modulus and ion release, leading to complications and implant failures. Polyetheretherketone (PEEK), a semi-crystalline polymer with an aromatic backbone, presents a promising alternative due to its adjustable elastic modulus and compatibility with bone tissue.
View Article and Find Full Text PDFOphthalmic Plast Reconstr Surg
December 2024
Department of Oculoplastic, Orbital and Lacrimal Surgery, Aichi Medical University Hospital.
Purpose: To examine the anatomy of the orbital septum posterior to the medial canthal tendon area.
Materials And Methods: We performed 3 anatomical dissections in the present study. The first one was a microscopic study in which exenterated specimens from 6 Japanese cadavers (age from 77 to 93 years at death) were cut inferno-horizontally, including the Müller muscle, medial rectus pulley, and lateral rectus pulley, and stained with Masson's trichrome.
Molecules
December 2024
Unidade de Tecnologia e Inovação, INIAV-Instituto Nacional de Investigação Agrária e Veterinária, 2780-157 Oeiras, Portugal.
Sweet potato ( (L.) Lam.) is a nutrient-dense crop rich in fibre, minerals, and antioxidant compounds, including carotenoids and phenolic compounds, such as anthocyanins.
View Article and Find Full Text PDFJ Oral Biosci
December 2024
Department of maxillofacial surgery, Graduate School of Medical and Dental Sciences, Institute of Science Tokyo, Tokyo, Japan.
Objective: In this study, we aimed to establish an experimental model of idiopathic condylar resorption by combining surgically induced anterior disc displacement and estrogen deficiency in growing rabbits. This study aimed to investigate the individual and combined effects of these factors on condylar resorption.
Materials And Methods: Seventeen female Japanese White rabbits were divided into four groups: control, ovariectomy, anterior disc displacement surgery, and combination of ovariectomy and anterior disc displacement surgery.
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