Hypersensitivity pneumonitis

Case contributed by Dr Yi-Jin Kuok

Presentation

Hypoxia. ? Asthma. Response to steroid therapy. A chest radiograph is performed.

Patient Data

Age: 12 years
Gender: Female
X-ray

Subtle perihilar alveolar infiltrate.

CT

Perihilar ground glass changes

Poor expiratory effort reveals peripheral gas trapping

Case Discussion

Further history reveals the patient slept near her pet parrot. 

Learning point: hypersensitivity pneumonitis can mimic asthma (clinically, not radiologically) and the patient improves with steroid therapy.

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Case information

rID: 17192
Published: 25th Mar 2012
Last edited: 13th Aug 2019
Inclusion in quiz mode: Included

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