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Under the free margin of the nail, hyperkeratosis causes the nail plate to pull up and results in a deformity that resembles a gaping toecap separated from the sole at the seam. Pitting and sporadic cross-ridging of the nail plate are more common in fingernails than toenails.
The use of podiatry drills, in the absence of engineering controls and personal protective equipment, is an occupational hazard to the healthcare provider.Nail dust collected during foot care procedures performed in office settings has been found to contain keratin, keratin hydrolysates, microbial debris, and viable fungal elements, including dermatophytes (most commonly Trichophyton rubrum ...
Early actinic keratosis with parakeratosis, with black arrows indicating one of multiple retained nuclei in the stratum corneum. Parakeratosis is a mode of keratinization characterized by the retention of nuclei in the stratum corneum. [1]
Scale: Dry or greasy laminated masses of keratin, [30] they represent thickened stratum corneum. [29] Crust: Dried sebum usually mixed with epithelial and sometimes bacterial debris [10] Lichenification: Epidermal thickening characterized by visible and palpable thickening of the skin with accentuated skin markings [1]
Onychoschizia, also known as nail splitting and brittle nails, is a splitting of the free-edged tip of the nail. [1] There is also often a longitudinal split in addition to the separation of keratin layers.
Dermatosis neglecta is a skin condition in which accumulation of sebum, keratin, sweat, dirt and debris leads to a localized patch of skin discoloration or a wart-like plaque. It is caused by inadequate hygiene of a certain body part, usually due to some form of disability or a condition that is associated with pain or increased sensitivity to ...
The main symptom is swelling at the base of the nail on the ingrowing side (though it may be present on both sides). Onychocryptosis should not be confused with irregular nail growth patterns such as convex nails, involuted nails, or pincer nails. It also should not be confused with the presence of small corns, callus, or debris down the nail ...
The defining characteristic of a keratoacanthoma is that it is dome-shaped, symmetrical, surrounded by a smooth wall of inflamed skin, and capped with keratin scales and debris. It grows rapidly, reaching a large size within days or weeks, and if untreated for months will almost always starve itself of nourishment, necrose (die), slough, and ...