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Commonly caused by bacterial infection, as in the case of cellulitis or diverticulitis. Non-infectious causes of phlegmon include acute pancreatitis, where inflammation is caused by leaking of pancreatic digestive enzymes into the surrounding tissues. Factors affecting the development of phlegmon are virulence of bacteria and immunity strength.
Cellulitis in 2015 resulted in about 16,900 deaths worldwide, up from 12,600 in 2005. [8] Cellulitis is a common global health burden, with more than 650,000 admissions per year in the United States alone. In the United States, an estimated 14.5 million cases annually of cellulitis account for $3.7 billion in ambulatory care costs alone.
An abscess is a collection of pus that has built up within the tissue of the body, usually caused by bacterial infection. [ 6 ] [ 7 ] Signs and symptoms of abscesses include redness, pain, warmth, and swelling. [ 1 ]
A skin infection is an infection of the skin in humans and other animals, that can also affect the associated soft tissues such as loose connective tissue and mucous membranes. [ citation needed ] They comprise a category of infections termed skin and skin structure infections (SSSIs), or skin and soft tissue infections (SSTIs), [ 1 ] and acute ...
[4] [needs update] Uncomplicated SSSIs included "simple abscesses, impetiginous lesions, furuncles, and cellulitis." [ 4 ] Complicated SSSIs included "infections either involving deeper soft tissue or requiring significant surgical intervention, such as infected ulcers, burns, and major abscesses or a significant underlying disease state that ...
Erysipelas (/ ˌ ɛ r ə ˈ s ɪ p ə l ə s /) is a relatively common bacterial infection of the superficial layer of the skin (upper dermis), extending to the superficial lymphatic vessels within the skin, characterized by a raised, well-defined, tender, bright red rash, typically on the face or legs, but which can occur anywhere on the skin.
Perianal cellulitis, also known as perianitis or perianal streptococcal dermatitis, is a bacterial infection affecting the lower layers of the skin around the anus. [ 1 ] [ 2 ] [ 3 ] It presents as bright redness in the skin and can be accompanied by pain, difficulty defecating, itching, and bleeding.
Rarely, the spread of infection from pericoronitis may compress the airway and require hospital treatment (e.g. Ludwig's angina), although the majority of cases of pericoronitis are localized to the tooth. Other potential complications of a spreading pericoronal abscess include peritonsillar abscess formation or cellulitis. [4]