When you have asthma, the airways in your lungs get narrow and swollen. They also make too much mucus. This sets off spasms in the tubes that let air in and out of your lungs (bronchial tubes).

An infiltration of >30 eosinophils per high-power field in at least five high-power fields, exhibiting signs of eosinophilic degranulation and extending to the muscularis mucosa or submucosa are ...

Eosinophilic asthma is often more serious than other types of asthma. Your lungs, blood, and mucus have high levels of white blood cells called eosinophils. Having more eosinophils in your blood ...

First identified in 1989, eosinophilia-myalgia syndrome is a rare condition that produces inflammation in the muscles, lungs, and skin. Patients with this syndrome also have elevated levels of ...