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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]
Carbuncles and boils are types of abscess that often involve hair follicles, with carbuncles being larger. [7] 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.
Folliculitis is the infection and inflammation of one or more hair follicles.The condition may occur anywhere on hair-covered skin.The rash may appear as pimples that come to white tips on the face, chest, back, arms, legs, buttocks, or head.
Cysts: Cysts are large, soft, pus-filled lesions beneath the skin’s surface. Also called cystic acne, this type of acne can cause severe inflammation and even infection.
This results in pustules, whiteheads, or other pimple-like bumps on the scalp that can be painful. Scalp folliculitis is typically a fairly harmless condition , but it can be itchy or ...
A carbuncle is a cluster of several boils, which is typically filled with purulent exudate (dead neutrophils, phagocytized bacteria, and other cellular components). [5] Fluid may drain freely from the carbuncle, or intervention involving an incision and drainage procedure may be needed. [ 4 ]
A sebaceous cyst is a term commonly used to refer to either: [1] Epidermoid cysts (also termed epidermal cysts, infundibular cyst) Pilar cysts (also termed trichelemmal cysts, isthmus-catagen cysts) Both of the above types of cysts contain keratin, not sebum, and neither originates from sebaceous glands.
A cyst / s ɪ s t / is a closed sac, having a distinct envelope and division compared with the nearby tissue.Hence, it is a cluster of cells that have grouped together to form a sac (like the manner in which water molecules group together to form a bubble); however, the distinguishing aspect of a cyst is that the cells forming the "shell" of such a sac are distinctly abnormal (in both ...