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Typical CT Features of Intrapulmonary Lymph Nodes: A Review
- Source :
- Radiology: Cardiothoracic Imaging, 2, Radiology: Cardiothoracic Imaging, 2, 4
- Publication Year :
- 2020
-
Abstract
- Contains fulltext : 229529.pdf (Publisher’s version ) (Open Access) Several studies investigated the appearance of intrapulmonary lymph nodes (IPLNs) at CT with pathologic correlation. IPLNs are benign lesions and do not require follow-up after initial detection. There are indications that IPLNs represent a considerable portion of incidentally found pulmonary nodules seen at high-resolution CT. The reliable and accurate identification of IPLNs as benign nodules may substantially reduce the number of unnecessary follow-up CT examinations. Typical CT features of IPLNs are a noncalcified solid nodule with sharp margins; a round, oval, or polygonal shape; distanced 15 mm or less from the pleura; and most being located below the level of the carina. The term perifissural nodule (PFN) was coined based on some of these characteristics. Standardization of those CT criteria are a prerequisite for accurate nodule classification. However, four different definitions of PFNs can currently be found in the literature. Furthermore, there is considerable variation in the reported interobserver agreement, malignancy rate, and prevalence of PFNs. The purpose of this review was to provide an overview of what is known about PFNs. In addition, knowledge gaps in defining PFNs will be discussed. A decision tree to guide clinicians in classifying nodules as PFNs is provided.Supplemental material is available for this article.? RSNA, 2020See also the commentary by White and Rubin in this issue.
- Subjects :
- medicine.medical_specialty
business.industry
Intrapulmonary lymph nodes
Vascular damage Radboud Institute for Health Sciences [Radboudumc 16]
Nodule (medicine)
030204 cardiovascular system & hematology
Malignancy
medicine.disease
030218 nuclear medicine & medical imaging
03 medical and health sciences
0302 clinical medicine
Pathologic correlation
medicine
Radiology, Nuclear Medicine and imaging
Radiology
medicine.symptom
business
Rare cancers Radboud Institute for Health Sciences [Radboudumc 9]
Subjects
Details
- ISSN :
- 26386135
- Volume :
- 2
- Database :
- OpenAIRE
- Journal :
- Radiology: Cardiothoracic Imaging
- Accession number :
- edsair.doi.dedup.....3051fd29dddb59e4bfbe0d174b724d8f