Does Kawasaki disease cause a rash on the face?

Written by Li Jiao Yan

Neonatology

Updated on September 05, 2024

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The pathogenesis of Kawasaki disease is unclear, and the main pathological change is systemic vasculitis. Typically, the rash is a polymorphic erythema or a scarlatiniform rash, primarily occurring on the trunk. Generally, facial rashes are rare, but it's not entirely impossible for rashes to appear on the face. Therefore, if a baby develops a rash on the face without other infections, Kawasaki disease might also present this symptom.

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Written by Yan Xin Liang

Pediatrics

52sec

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Is Kawasaki disease characterized by eye discharge?

Kawasaki disease is an autoimmune vasculitis that can affect blood vessels throughout the body and various organs, but the most severe impact is typically on the coronary arteries, which can lead to dilation of the coronary arteries or the possibility of forming coronary artery aneurysms. The disease can cause conjunctival congestion, but this is a manifestation of aseptic conjunctivitis, meaning it does not cause, nor does it result in, purulent secretions, in other words, it does not cause eye discharge. Therefore, if a patient with Kawasaki disease has purulent eye discharge, it is possible that they have a concurrent bacterial conjunctivitis. Thus, generally, eyes affected by Kawasaki disease do not have eye discharge but may appear dry and red.

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Written by Li Jiao Yan

Neonatology

1min 42sec

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Is Kawasaki disease scary?

Kawasaki disease, also known as mucocutaneous lymph node syndrome, is a common pediatric autoimmune disease. The pathogenesis of Kawasaki disease remains unclear, and its etiology is also unknown, mainly focusing on immune reactions, genetic susceptibility, and theories of pathogenic microbial infections. Its primary pathological change is systemic vasculitis, most commonly affecting the coronary arteries. Most cases of Kawasaki disease have a good prognosis, with recurrences seen in 1% to 2% of patients. After effective treatment, complications involving coronary artery damage are less common. However, untreated patients develop coronary artery aneurysms in 15%-25% of cases. These aneurysms often resolve on their own within two years of the illness, but often leave behind complications such as thickened vessel walls and reduced elasticity. Large aneurysms are less likely to resolve completely and often lead to thrombosis or narrowing of the vessel lumen. Kawasaki disease is also one of the common causes of acquired heart disease in children. Thus, if Kawasaki disease is detected early, timely treatment is necessary to avoid cardiac sequelae. After effective treatment, the prognosis is generally good. However, if there are complications like coronary artery damage or other heart issues, it may affect the child's quality of life and even lifespan.

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Written by Shi Ji Peng

Pediatrics

54sec

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How is Kawasaki disease diagnosed?

Kawasaki disease, also known as mucocutaneous lymph node syndrome, is an acute febrile rash disease characterized primarily by inflammation of medium and small arteries throughout the body, with a self-limiting nature. Clinically, it mainly presents with fever, rash, mucosal lesions, conjunctival congestion, and non-suppurative enlargement of cervical lymph nodes. If untreated, 20% of cases can lead to coronary artery damage. To diagnose this disease, in addition to typical clinical manifestations, attention must also be paid to various tests such as blood tests, immunological tests, and ultrasound examinations for a comprehensive assessment. Although the clinical characteristics are largely indicative of the disease, ultrasound examination is crucial to check for any dilation of the coronary arteries.

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Written by Yan Xin Liang

Pediatrics

59sec

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Kawasaki disease sequelae

Kawasaki disease is an autoimmune vasculitis, and since it is vasculitis, it can originate from blood vessels in various parts, including the heart, liver, kidneys, brain, and more. However, it mainly arises from the coronary arteries of the heart. If Kawasaki disease is not effectively treated, some patients can develop coronary artery dilation and even coronary artery aneurysms. Once a coronary artery aneurysm occurs, its complication includes the risk of rupture and bleeding of the aneurysm, which can be difficult to treat if there is severe bleeding. If there is some coronary artery dilation, it can lead to the formation of coronary artery thrombosis, which is also a complication it can cause. However, the vast majority of Kawasaki disease cases, if treated effectively, can prevent coronary artery abnormalities. Therefore, as long as the treatment is timely, most cases will not have significant lasting effects.

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Written by Li Jiao Yan

Neonatology

48sec

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Is IgE high in Kawasaki disease?

Kawasaki disease, also known as mucocutaneous lymph node syndrome, has an unclear pathogenesis. It is speculated that certain components of infectious sources, such as superantigens, can activate CD30 T cells and CD40 ligand expression directly by binding with T cell antigen receptor fragments without going through mononuclear macrophages. Under the induction of carrier cells, there is polyclonal activation and reduced apoptosis of B08 cells, resulting in the production of large amounts of immunoglobulins such as IgG, IgM, IgA, and IgE, and cytokines. Therefore, the IgE levels in Kawasaki disease are elevated.