Scarlet fever: Causes, Treatment, and Outcome - DermNet
2016年3月5日 · Scarlet fever is a bacterial illness that often presents with a distinctive rash made up of tiny pinkish-red spots that cover the whole body. It affects people who have recently had a sore throat (strep throat) or school sores (impetigo) caused by certain strains of the group A streptococcus bacteria. A toxin released by the streptococcal ...
Streptococcal skin infections - DermNet
Streptococcal perianal and/or vulval dermatitis. Impetigo. Cellulitis. Necrotising fasciitis. In addition, streptococci are capable of causing skin disease through means other than direct infection of the skin; for example: Scarlet fever is a reaction to a circulating toxin that is produced by some strains of streptococcus.
Perianal streptococcal dermatitis
Perianal streptococcal dermatitis is caused by streptococcal bacteria of the group A beta- haemolytic (GAS) type. The same bacterium may be carried in the throat of the patient or carer and inoculation from the nasopharynx to the perianal area when wiping is thought to be common. The bacteria may be passed to other children and family members.
Exanthems (reactive rashes) - DermNet
Non-specific exanthems appear as spots or blotches and may or may not be itchy. The rash is usually widespread and may be more extensive on the trunk than the extremities. In most cases, prior to the rash appearing, patients may have symptoms of general unwellness that include: Fever. Malaise.
Staphylococcal scalded skin syndrome - DermNet
2021年11月17日 · The blistering of large areas of skin gives the appearance of a burn or scalding, hence the name staphylococcal scalded skin syndrome. SSSS is often used interchangeably with the eponymous name Ritter von Ritterschein disease (Ritter disease), particularly when it presents in newborn children. Superficial blistering over the axillae, face and ...
Guttate psoriasis - DermNet
Guttate psoriasis is a clinical diagnosis, aided by dermoscopy, which can be confirmed on skin biopsy. Examination and investigations should include a search for streptococcal infection. Tests may include: Swabs for bacteriology. Blood tests — …
Erysipelas - DermNet
Erysipelas is a superficial form of cellulitis, a potentially serious bacterial infection affecting the skin. Erysipelas affects the upper dermis and extends into the superficial cutaneous lymphatics. It is also known as St Anthony's fire due to the intense rash associated with it.
Infectious mononucleosis, Epstein Barr virus, glandular fever
The typical exanthem of infectious mononucleosis is an acute, generalised maculopapular rash. The exanthem: Affects 4.2 to 13% of patients who are not on antibiotics; Is usually faint and non-itchy, appearing first on the trunk and upper arms, extending to involve the face and forearms; May be morbilliform, papular, scarlatiniform, vesicular ...
Urticaria (Hives): a complete overview - DermNet
Urticaria can be acute or chronic, spontaneous or inducible. A weal (or wheal) is a superficial skin-coloured or pale skin swelling, usually surrounded by erythema that lasts anything from a few minutes to 24 hours. Urticaria can co-exist with angioedema which is a deeper swelling within the skin or mucous membranes.
Perianal dermatoses
Anal intraepithelial neoplasia (AIN) is a superficial squamous-cell carcinoma usually associated with human papillomavirus (HPV) 16 and 18, often seen in HIV/AIDS. The clinical features are non-specific, presenting as a bleeding, well-defined red, scaly erythematous rash-like plaque on the perianal skin. Perianal psoriasis.