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The Nikolsky sign is dislodgement of intact superficial epidermis by a shearing force, indicating a plane of cleavage in the skin epidermal-epidermal junctions (e.g., desmosomes). The histological picture involves thinner, weaker attachments of the skin lesion itself to the normal skin – resulting in easier dislodgement.
SSSS is a clinical diagnosis. This is sometimes confirmed by isolation of S. aureus from blood, mucous membranes, or skin biopsy; however, these are often negative. Skin biopsy may show separation of the superficial layer of the epidermis (intraepidermal separation), differentiating SSSS from TEN, wherein the separation occurs at the dermo-epidermal junction (subepidermal separation).
Diagnostic method > 30% of the skin involved, skin biopsy [3] Differential diagnosis: Chickenpox, staphylococcal epidermolysis, staphylococcal scalded skin syndrome, autoimmune bullous disease [3] Treatment: Hospitalization, stopping the cause, pain medication [3] Prognosis: Mortality 20–50% [2] [3] Frequency: 1–2 per million per year ...
Pneumococcal pneumonia is a type of bacterial pneumonia that is caused by Streptococcus pneumoniae (pneumococcus). [1] It is the most common bacterial pneumonia found in adults, the most common type of community-acquired pneumonia, and one of the common types of pneumococcal infection. The estimated number of Americans with pneumococcal ...
[2] [3] It is seen along with Nikolsky's sign, both used to assess the severity of some blistering diseases such as pemphigus vulgaris and severe bullous drug reactions. [ 4 ] This sign is named for the Danish physician Gustav Asboe-Hansen (1917–1989), who first described it in 1960.
The sloughing of skin associated with certain varieties of this condition is now referred to as Nikolsky's sign. In 1898, he became a professor at the Imperial University of Warsaw, and later established the Department of Dermatology and Venerology in Rostov at what is now Rostov State Medical University. [1]
The diagnosis is based on involvement of less than 10% of the skin. [2] It is known as TEN when more than 30% of the skin is involved and an intermediate form with 10 to 30% involvement. [3] A positive Nikolsky's sign is helpful in the diagnosis of SJS and TEN. [9] A skin biopsy is helpful, but not required, to establish a diagnosis of SJS and ...
Pneumonia fills the lung's alveoli with fluid, hindering oxygenation. The alveolus on the left is normal, whereas the one on the right is full of fluid from pneumonia. Pneumonia frequently starts as an upper respiratory tract infection that moves into the lower respiratory tract. [55] It is a type of pneumonitis (lung inflammation). [56]