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    Allergic asthma

    Allergic asthma consists of inflammation and hyper-responsiveness. Components of the inflammation (inflammatory cells, edema, mucus) are shown along with the muscle hypertrophy and contraction which push the swollen tissue into the lumen, which gets smaller and smaller.

    1

    The mast cells in an acute allergic asthma attack are found to have released their granular contents.

    2

    Released granules can produce immediate bronchospasm.