Pulmonary nodular lymphoid hyperplasia
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Pulmonary nodular lymphoid hyperplasia is a medical lung disease that mimics lymphoma.
It is also known as pseudolymphoma, a term some dislike.[1]
General
- Definition - reactive lymphoid cells.
Gross/radiology
- Has nodules radiographically.
Microscopic
Features:[1]
- Reactive lymphoid nodules.
Notes:[2]
- Presence of germinal centres do not exclude lymphoma - may still be a BALToma.
- BALT = bronchial/bronchus associated lymphoid tissue.
DDx:
- Lymphoma, specifically MALTomas/BALTomas.
- Lymphocytic interstitial pneumonia.
- Follicular bronchiolitis.