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In microsporosis, the lesion is a small red papule around a hair shaft that later becomes scaly; eventually the hairs break off 1–3 mm above the scalp. This disease used to be caused primarily by Microsporum audouinii , but in Europe, M. canis is more frequently the causative fungus.
Specifically, scalp fungal infections are often caused by fungi in the microsporum and trichophyton genera. Scalp fungus can cause a variety of symptoms, including: Dry, scaly skin. Redness ...
Once the fungal infection has been contracted, it invades hairs and sporulates in the hair shaft, causing it to burst and curl, creating a black dot on the scalp. [5] Tinea capitis is the clinical disease, but it may also cause Tinea corporis, onychomycosis, and Tinea pedis. [5] Cutaneous lesions due to T. tonsurans do not fluoresce under Wood ...
Trichophyton rubrum is also a very common cause of favus, a form of tinea capitis in which crusts are seen on the scalp. Tinea capitis is characterized by irregular or well-demarcated alopecia (balding) and scaling. Infected hair shafts are broken off just at the base, leaving a black dot just under the surface of the skin, and alopecia can ...
Here are the most common scalp conditions, with photos and treatments. Want to know what that bump, sore, scabs or red irritation on your scalp means? Here are the most common scalp conditions ...
Scalp folliculitis is caused when microorganisms enter the hair follicles through tiny cuts, abrasions, or via the sebaceous glands. Scalp folliculitis can be caused by a few factors, including:
Typical first symptoms of alopecia areata are small bald patches. The underlying skin is unscarred and looks superficially normal. Although these patches can take many shapes, they are usually round or oval. [19] Alopecia areata most often affects the scalp and beard, but may occur on any part of the body with hair. [20]
Scalp psoriasis is an inflammatory and chronic autoimmune disease and is a common cause of scalp scabs and discolored patches of skin on and around the scalp. It can also affect other parts of the ...