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Rete pegs (also known as rete processes or rete ridges) are the epithelial extensions that project into the underlying connective tissue in both skin and mucous membranes. In the epithelium of the mouth, the attached gingiva exhibit rete pegs, while the sulcular [2] and junctional epithelia do not. [3]
1 de jul. de 2018 · Histological findings of plaque psoriasis: elongated, club-like rete ridges are visualized, along with dilatation and ectasia of the interdigitating dermal capillaries
1 de ene. de 2023 · Rete ridges (RRs) are distinct undulating microstructures at the junction of the dermis and epidermis in the skin of humans and certain animals. This structure is essential for enhancing the mechanical characteristics of skin and preserving homeostasis.
27 de oct. de 2020 · Epithelial thickness is normal to slightly increased and dyskeratosis is minimal. Rete ridge length is reduced to normal, with clubbed or branched morphology. Two thirds have moderate to dense infiltrate and abnormal collagen. 20
Histopathological features favoring psoriasis include mounds of parakeratosis with neutrophils, spongiform micropustules of Kogoj, clubbed and evenly elongated rete ridges, and increased mitotic figures (≥6/high-powered field).
Classic psoriasis vulgaris lesions demonstrate acanthosis (thickening of the epidermis) with elongated and clubbed rete ridges and suprapapillary thinning of the epidermis. There are often hypogranulosis, parakeratosis, and neutrophils in the stratum corneum, forming Munro microabscesses and pustules of Kogoj.
7 de dic. de 2015 · Histopathological examination of the 3-mm, benign melanocytic lesion showed slightly elongated, clubbed rete ridges and intermittently distributed single melanocytes at the tip and side of the rete ridges without signs of dysplasia ( Fig. 2A ).
