"Subacute hypersensitivity pneumonitis (also known as subacute extrinsic allergic alveolitis) is a legacy term not recommended in guidelines (c. 2020) 10. It develops when hypersensitivity pneumonitis continues beyond the acute phase (i.e. continues for weeks to months) and still has the potential to resolve with treatment. While some publications suggest the disease needs to prevail for between 1-4 months to fall into this category 6, it is important to realise that the terms acute, subacute, and chronic lie on a continuum."
Expected headings
"Complications"