Perifissural lung nodules
Perifissural lung nodules (PFNs) are a type of intrapulmonary nodules. They commonly represent intrapulmonary lymph nodes 1. There is some overlap with the term perilymphatic pulmonary nodules since the latter can be perifissural.
PFNs are typically seen as well-circumscribed, smoothly marginated nodules in contact with or closely related to a pulmonary fissure. Most show a triangular, oval, round, rectangular, or dumbbell shape. They may often show a septal attachment to the pleural surface 3.
If they have typical morphology they are favoured to be benign despite some nodules having tendency to grow over serial scans 2.
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- 2. de Hoop B, van Ginneken B, Gietema H et-al. Pulmonary perifissural nodules on CT scans: rapid growth is not a predictor of malignancy. Radiology. 2012;265 (2): 611-6. doi:10.1148/radiol.12112351 - Pubmed citation
- 3. Frank L, Quint LE. Chest CT incidentalomas: thyroid lesions, enlarged mediastinal lymph nodes, and lung nodules. Cancer Imaging. 2012;12 (1): 41-8. doi:10.1102/1470-7330.2012.0006 - Free text at pubmed - Pubmed citation
- 4. Mets OM, Chung K, Scholten ET, Veldhuis WB, Prokop M, van Ginneken B, Schaefer-Prokop CM, de Jong PA. Incidental perifissural nodules on routine chest computed tomography: lung cancer or not?. (2018) European radiology. 28 (3): 1095-1101. doi:10.1007/s00330-017-5055-x - Pubmed
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