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[Asthma from tropical abachi wood].

We report the case of a 28-year old man suffering from rhinitis and asthma which appeared 8 years after exposure to different woods, especially abachi wood. Serial PEFR monitoring at work and away from work were consistent with occupational asthma. Spirometry showed an airway obstruction, and metacholine inhalation test was positive. Skin prick-tests performed with different woods were only positive to abachi wood extract. The search for specific IgE was positive to abachi wood (4, 98 KU/l, class 3). The diagnosis of occupational asthma caused by exposure to abachi wood was established, the mechanism underlying this asthma was IgE mediated. Despite respiratory protection measures, the patient had persisting symptoms and was laid off. The German service for social cover asked for an expert evaluation: specific nasal and inhalation provocation tests performed by exposure to fine abachi wood dust were positive. This is an observation with a double significance: first, although the mechanisms underlying wood occupational asthma remain largely unknown, an IgE mechanism for abachi wood was demonstrated; second, legislation is different in France and Germany where occupational asthma will only be acknowledged if inhalation tests are positive.