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A subungual hematoma is a collection of blood underneath a toenail or fingernail. It can be extremely painful for an injury of its size, although otherwise it is not a serious medical condition. It can be extremely painful for an injury of its size, although otherwise it is not a serious medical condition.
Distal subungual onychomycosis is the most common form of tinea unguium [2] and is usually caused by Trichophyton rubrum, which invades the nail bed and the underside of the nail plate. White superficial onychomycosis (WSO) is caused by fungal invasion of the superficial layers of the nail plate to form "white islands" on the plate.
Subungual hematoma occurs when trauma to the nail results in a collection of blood, or hematoma, under the nail. It may result from an acute injury or from repeated minor trauma such as running in undersized shoes. Acute subungual hematomas are quite painful, and are usually treated by releasing the blood by creating a small hole in the nail.
Onychauxis frequently shows up clinically as discoloration, subungual hyperkeratosis, and loss of nail plate translucency. [3] It may cause pain, and over time, distal onycholysis, subungual bleeding, subungual ulceration, or an elevated risk of onychomycosis might aggravate matters. [4] [5]
Dog with atopic dermatitis, with signs around the eye created by rubbing. Atopy is a hereditary [3] and chronic (lifelong) allergic skin disease. Signs usually begin between 6 months and 3 years of age, with some breeds of dog, such as the golden retriever, showing signs at an earlier age.
The exact cause of subungual melanomas is not known, but it doesn’t seem to be linked to sun exposure. Having certain characteristics, including an age between 50 to 70, darker skin, and a ...
Detail from The Extraction of the Stone of Madness, a painting by Hieronymus Bosch depicting trepanation (c. 1488–1516). Trepanning, also known as trepanation, trephination, trephining or making a burr hole (the verb trepan derives from Old French from Medieval Latin trepanum from Greek trúpanon, literally "borer, auger"), [1] [2] is a surgical intervention in which a hole is drilled or ...
Many forms of pemphigus can be identified in dogs using methods similar to those employed for humans. [14] Pemphigus vulgaris is rare in humans and animals, but is often fatal if left untreated. In dogs, the disease presents itself so similarly to the way it occurs in humans that dogs can be used as models for the disease in humans. [4]