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Pyoderma means any skin disease that is pyogenic (has pus). These include superficial bacterial infections such as impetigo, impetigo contagiosa, ecthyma, folliculitis, Bockhart's impetigo, furuncle, carbuncle, tropical ulcer, etc. [1] [2] Autoimmune conditions include pyoderma gangrenosum.
This is an accepted version of this page This is the latest accepted revision, reviewed on 14 October 2024. Fluid produced by inflammatory infection For other uses, see Pus (disambiguation). Medical condition Pus Eye with conjunctivitis exuding pus Specialty Infectious disease Pus is an exudate, typically white-yellow, yellow, or yellow-brown, formed at the site of inflammation during ...
A boil, also called a furuncle, is a deep folliculitis, which is an infection of the hair follicle. It is most commonly caused by infection by the bacterium Staphylococcus aureus, resulting in a painful swollen area on the skin caused by an accumulation of pus and dead tissue. [1] Boils are therefore basically pus-filled nodules. [2]
[3] [4] Infection causes inflammation and the development of pus. [2] Whether a skin condition classifies as acne depends on the number of comedones and infection. [4] Comedones should not be confused with sebaceous filaments. Comedo-type ductal carcinoma in situ (DCIS) is not related to the skin conditions discussed here. DCIS is a noninvasive ...
A cyst is related to an abscess, but it contains a material other than pus, and a cyst has a clearly defined wall. Abscesses can also form internally on internal organs and after surgery. They are usually caused by a bacterial infection. [10] Often many different types of bacteria are involved in a single infection. [8]
Later, skin on the centre of the carbuncle softens and peripheral satellite vesicles appear; these rupture, discharging pus, and give rise to cribriform appearance. [3] [6] As the impending infection develops, itching may occur. There may be localized erythema or skin irritation, and the area may
Pressure ulcers can trigger other ailments, cause considerable suffering, and can be expensive to treat. Some complications include autonomic dysreflexia, bladder distension, bone infection, pyarthrosis, sepsis, amyloidosis, anemia, urethral fistula, gangrene and very rarely malignant transformation (Marjolin's ulcer – secondary carcinomas in chronic wounds).
In contrast, infection of the skin usually led to a milder, localized infection, but, crucially, still induced immunity to the virus. The patient would develop pustules like those caused by naturally acquired smallpox. Eventually, after about two to four weeks, these symptoms would subside, indicating successful recovery and immunity.