maple bark disease


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maple bark disease

 
a granulomatous interstitial pneumonitis due to inhalation of the spores from Cryptostroma corticale, a mold found beneath the bark of maple logs.

ma·ple bark dis·ease

hypersensitivity pneumonitis caused by spores of Cryptostroma corticale growing under the bark of stacked maple logs.

maple bark disease

Etymology: AS, mapul + ONorse, bark + L, dis, opposite of; Fr, aise, ease
a hypersensitivity pneumonitis caused by exposure to the mold Cryptostroma corticale, found in the bark of maple trees. In the susceptible person the condition may be acute, accompanied by fever, cough, dyspnea, and vomiting, or chronic, characterized by fatigue, weight loss, dyspnea on exertion, and a productive cough. Although differential diagnosis may be difficult, a thorough occupational history may reveal the cause and source of exposure. In an acute or severe case a short course of prednisone may be used to control the symptoms; avoiding exposure to the bark prevents further reaction.

maple bark disease

An ALLERGIC ALVEOLITIS caused by inhalation of the saprophytic fungus Coniosporium corticale from the bark of maple trees.