A rare case of papillary lymphoid hyperplasia is reported in a 16-year-old girl. The case presented as papillomatous lesions of both palatine tonsils. Histopathologic findings revealed an unusual form of lymphoid hyperplasia. It is important to recognize this peculiar lesion because it exhibits clinical features suggestive of benign (papillomas) and malignant (carcinoma) neoplasia. Papillary lymphoid hyperplasia is a benign process, probably non-neoplastic, and easily cured by tonsillectomy.
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http://dx.doi.org/10.1067/moe.2003.48 | DOI Listing |
Animals (Basel)
December 2024
Department of Veterinary Pathology, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania.
Gastric lymphofollicular hyperplasia (GLFH) is characterized by large lymphoid nodules in the lamina propria. Its etiology and immunohistochemical characteristics are poorly understood. This study analyzed 41 canine GLFH cases, including clinical, endoscopic, histopathological, and immunohistochemical evaluations.
View Article and Find Full Text PDFEur J Ophthalmol
January 2025
Liverpool University Hospitals NHS Foundation Trust, University of Liverpool, Liverpool, UK.
This study aimed to describe a case series of patients diagnosed with orbital reactive lymphoid hyperplasia (RLH) at a single tertiary care centre. A retrospective review was conducted by searching electronic medical records at Liverpool University NHS Foundation Trust (LUHFT) from 1 December 2021 - 1 December 2023, to identify all patients with a histological diagnosis. Ten patients with an orbital histological diagnosis of RLH were identified.
View Article and Find Full Text PDFExpert Rev Respir Med
January 2025
School of Medicine and Public Health, University of Wisconsin Madison, Madison, WI, USA.
Introduction: In genetically predisposed individuals, exposure to aeroallergens and infections from RNA viruses shape epithelial barrier function, leading to Allergic Asthma (AA). Here, activated pattern recognition receptors (PRRs) in lower airway sentinel cells signal epithelial injury-repair pathways leading to cell-state changes [epithelial mesenchymal plasticity (EMP)], barrier disruption and sensitization.
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Pediatr Int
December 2024
Department of Pediatrics and Adolescent Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.
Tolerance to foreign molecules is primarily induced through three pathways: anergy, active suppression, and clonal deletion. The immaturity of gut functions, including digestion and barrier protection against foreign molecules during early infancy, is closely linked to the induction of tolerance. A significant number of undigested peptides can pass through leaky gut walls during this period, making it an opportune time to introduce active suppression and clonal deletion in the intestine.
View Article and Find Full Text PDFCureus
December 2024
Department of General Surgery, East Kent Hospitals University NHS Foundation Trust, Queen Elizabeth The Queen Mother Hospital, Margate, GBR.
Acute appendicitis is the most frequent abdominal surgical emergency worldwide. While luminal obstruction due to fecaliths and lymphoid hyperplasia is a common cause, parasitic infections are a rare but significant contributor. , the most common helminthic infection in developed countries, can trigger appendiceal inflammation through a mechanical obstruction or immune response.
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