Byssinosis CT
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Overview
CT
CT
Acute hypersensitivity pneumonitis
- Chest radiographs in affected patients may be normal; thin-section CT can be helpful in these patients for showing characteristic centrilobular ground glass or nodular opacities.
- When abnormal, chest radiographs typically show focal or diffuse heterogeneous or homogeneous opacities.
Subacute hypersensitivity pneumonitis
- Patients with subacute disease usually have a more indolent clinical presentation. Nodular opacities are a characteristic feature on chest radiographs and CT. Centrilobular ground-glass or nodular opacities on CT suggest the diagnosis.
- Head cheese sign
Chronic hypersensitivity pneumonitis
- Chronic disease typically manifests with upper lung zone fibrosis. Characteristic distribution and presence of centrilobular nodules on CT help distinguish chronic hypersensitivity pneumonitis from idiopathic pulmonary fibrosis.
Images
Images
References
References
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