Perifissural nodules (PFNs) are well-circumscribed, smoothly marginated nodules in contact with or closely related to a fissure. •. PFNs are most commonly triangular or oval, often show a septal attachment, and are usually located below the level of the carina.

Are Perifissural nodules cancerous?

Perifissural nodules (PFNs) are a common finding on chest CT, and are thought to represent non-malignant lesions. However, data outside a lung cancer-screening setting are currently lacking.

Are Intrapulmonary lymph nodes cancerous?

An intrapulmonary lymph node is a benign nodule that frequently is encounterd, and should be distinguished from a malignant tumor.