perilymphatic lung nodules
Perilymphatic lung nodules follow perilymphatic channels and on imaging are typically subpleural, occur along fissures (perifissural nodules), interlobular septa and adjacent to the bronchovascular bundles.
Lung nodules in a perilymphatic distribution can be seen in association with a number of conditions :
- sarcoidosis (classic association)
- lymphangitis carcinomatosis: tends to be interspersed with interlobular septal thickening
- coal worker's pneumoconiosis: usually simple coal workers pneumoconiosis
- nodular pulmonary amyloidosis
- lymphocytic interstitial pneumonia