Paracicatricial emphysema is a morphological sub type of pulmonary emphysema.
Pathology
In this form, emphysematous spaces are seen adjacent to areas of scarring with latter usually caused by silicosis, granulomatous infection, tuberculosis, pneumonia or pulmonary infarction.
Radiographic features
CT
Often be seen as focal emphysematous spaces adjacent to regions of pulmonary scarring. It is sometimes difficult to differentiate from honeycombing due to pulmonary fibrosis.
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