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Pityriasis rosea is a type of skin rash. [2] Classically, it begins with a single red and slightly scaly area known as a "herald patch". [2] This is then followed, days to weeks later, by an eruption of many smaller scaly spots; pinkish with a red edge in people with light skin and greyish in darker skin. [4]
Tinea corporis (also known as "ringworm", [2] tinea circinata, [11] and tinea glabrosa [2]) is a superficial fungal infection (dermatophytosis) of the arms and legs, especially on glabrous skin; however, it may occur on any part of the body, it present as annular, marginated plaque with thin scale and clear center.
Patch: A patch is a large macule equal to or greater than either 5 or 10 mm across, [30] depending on one's definition of a macule. [1] Patches may have some subtle surface change, such as a fine scale or wrinkling, but although the consistency of the surface is changed, the lesion itself is not palpable.
The characteristic rash starts with a central circular or oval-shaped area, known as the "herald patch," Hu explains. "Then, within a week or two, people notice it spreading throughout the body."
ICD-10CM codes: Mycoses B35-B49 [4] Micrograph showing a mycosis (aspergillosis). The Aspergillus (which is spaghetti-like) is seen in the center and surrounded by inflammatory cells and necrotic debris. H&E stain. Specialty: Infectious Diseases [5] Types: Systemic, superficial, subcutaneous [3] Causes: Pathogenic fungus: dermatophytes, yeasts ...
Fungal, Bacterial and Viral infections such as sinusitis, tuberculosis, candidiasis or tinea. Drugs including finasteride, [6] etizolam (and benzodiazepines), chloroquine, hydroxychloroquine, oestrogen, penicillin and amitriptyline. Cancer (especially the type known as erythema gyratum perstans, in which there are concentric and whirling rings).
Porphyria cutanea tarda is the most common subtype of porphyria. [1] The disease is named because it is a porphyria that often presents with skin manifestations later in life.
One of the most frequent forms is dermatophytosis (ringworm, tinea) which includes tinea pedis, also known as athlete's foot. Another example is cutaneous candidiasis. These fungal infections impair superficial layers of the skin, hair and nails. [1] Dermatomycosis is one of the most common types of infection worldwide. [2]