Pulmonary nodule classification: Difference between revisions
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==Overview== | ==Overview== | ||
Pulmonary nodule may be classified according to size (> 8 mm vs. ≤8 mm), attenuation (pure solid vs. part-solid), and distribution ([[solitary]] vs. multiple). | Pulmonary nodule may be classified according to size (> 8 mm vs. ≤8 mm), attenuation (pure solid vs. part-solid), and distribution ([[solitary]] vs. multiple). It can also be classified into benign and malignant based on the radiological findings. | ||
==Classification== | ==Classification== | ||
===Based on size, attenuation, and distribution=== | |||
Pulmonary nodule may be classified according to size, attenuation, and distribution into the following:<ref name="NEJM-cp">{{cite journal |author=Ost D, Fein AM, Feinsilver SH |title=Clinical practice. The solitary pulmonary nodule |journal=N. Engl. J. Med. |volume=348 |issue=25 |pages=2535–42 |year=2003 |month=June |pmid=12815140 |doi=10.1056/NEJMcp012290 |url=http://content.nejm.org/cgi/pmidlookup?view=short&pmid=12815140&promo=ONFLNS19}}</ref> | Pulmonary nodule may be classified according to size, attenuation, and distribution into the following:<ref name="NEJM-cp">{{cite journal |author=Ost D, Fein AM, Feinsilver SH |title=Clinical practice. The solitary pulmonary nodule |journal=N. Engl. J. Med. |volume=348 |issue=25 |pages=2535–42 |year=2003 |month=June |pmid=12815140 |doi=10.1056/NEJMcp012290 |url=http://content.nejm.org/cgi/pmidlookup?view=short&pmid=12815140&promo=ONFLNS19}}</ref> | ||
===Size=== | ====Size==== | ||
*Nodules measuring >8 mm and < 30 mm in [[diameter]] | *Nodules measuring >8 mm and < 30 mm in [[diameter]] | ||
*Nodules measuring ≤8 mm in [[diameter]] | *Nodules measuring ≤8 mm in [[diameter]] | ||
===Attenuation=== | ====Attenuation==== | ||
*Pure solid nodules | *Pure solid nodules | ||
*Part-solid nodules | *Part-solid nodules | ||
===Distribution=== | ====Distribution==== | ||
*[[Solitary]] pulmonary nodule | *[[Solitary]] pulmonary nodule | ||
*Multiple pulmonary nodules | *Multiple pulmonary nodules | ||
===Based on Radiological Findings=== | |||
The table below summarizes the radiological features suggestive of benign or malignant pulmonary nodules.<ref name="pmid19835344">{{cite journal |vauthors=Albert RH, Russell JJ |title=Evaluation of the solitary pulmonary nodule |journal=Am Fam Physician |volume=80 |issue=8 |pages=827–31 |year=2009 |pmid=19835344 |doi= |url=}}</ref> | |||
{|style="border: 5px; font-size: 90%; margin: 5px; width: 1000px" align=center | |||
!style="padding: 5px 5px; background: #4479BA; font-weight: bold; text-align:center;" colspan="3"|{{fontcolor|#FFF|''' Radiologic Features Suggestive of Benign or Malignant Pulmonary Nodules''' <br><SMALL> Adapted from American Academy of Family Physicians <ref name="CDC"> Solitary Pulmonary Nodule: Morphological Evaluation. http://pubs.rsna.org/doi/pdf/10.1148/radiographics.20.1.g00ja0343 Accessed on March 15, 2016 </ref></SMALL>}} | |||
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! style="background: #4479BA; width: 300px;" | {{fontcolor|#FFF|'''Radiologic feature'''}} | |||
! style="background: #4479BA; width: 300px;" | {{fontcolor|#FFF|'''Benign'''}} | |||
! style="background: #4479BA; width: 300px;" | {{fontcolor|#FFF|'''Malignant'''}} | |||
|- | |||
|style="padding: 5px 5px; background: #DCDCDC; font-weight: bold; text-align:center;"| Size | |||
|style="padding: 5px 5px; background: #F5F5F5;"|< 5 mm | |||
|style="padding: 5px 5px; background: #F5F5F5;"|> 10 mm | |||
|- | |||
|style="padding: 5px 5px; background: #DCDCDC; font-weight: bold; text-align:center;"| Border | |||
|style="padding: 5px 5px; background: #F5F5F5;"| Smooth | |||
|style="padding: 5px 5px; background: #F5F5F5;"| Irregular or spiculated | |||
|- | |||
|style="padding: 5px 5px; background: #DCDCDC; font-weight: bold; text-align:center;"| Density | |||
|style="padding: 5px 5px; background: #F5F5F5;"| Dense, solid | |||
|style="padding: 5px 5px; background: #F5F5F5;"| Nonsolid, “ground glass” | |||
|- | |||
|style="padding: 5px 5px; background: #DCDCDC; font-weight: bold; text-align:center;"| Calcification | |||
|style="padding: 5px 5px; background: #F5F5F5;"| Typically a benign feature, especially in “concentric,” “central,” “popcorn-like,” or “homogeneous” patterns | |||
|style="padding: 5px 5px; background: #F5F5F5;"| Typically noncalcified, or “eccentric” calcification | |||
|- | |||
|style="padding: 5px 5px; background: #DCDCDC; font-weight: bold; text-align:center;"| Doubling time | |||
|style="padding: 5px 5px; background: #F5F5F5;"| Less than one month; more than one year | |||
|style="padding: 5px 5px; background: #F5F5F5;"| One month to one year | |||
|} | |||
==References== | ==References== |
Revision as of 17:29, 1 July 2019
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Maria Fernanda Villarreal, M.D. [2]
Overview
Pulmonary nodule may be classified according to size (> 8 mm vs. ≤8 mm), attenuation (pure solid vs. part-solid), and distribution (solitary vs. multiple). It can also be classified into benign and malignant based on the radiological findings.
Classification
Based on size, attenuation, and distribution
Pulmonary nodule may be classified according to size, attenuation, and distribution into the following:[1]
Size
Attenuation
- Pure solid nodules
- Part-solid nodules
Distribution
- Solitary pulmonary nodule
- Multiple pulmonary nodules
Based on Radiological Findings
The table below summarizes the radiological features suggestive of benign or malignant pulmonary nodules.[2]
Radiologic Features Suggestive of Benign or Malignant Pulmonary Nodules Adapted from American Academy of Family Physicians [3] |
|||
---|---|---|---|
Radiologic feature | Benign | Malignant | |
Size | < 5 mm | > 10 mm | |
Border | Smooth | Irregular or spiculated | |
Density | Dense, solid | Nonsolid, “ground glass” | |
Calcification | Typically a benign feature, especially in “concentric,” “central,” “popcorn-like,” or “homogeneous” patterns | Typically noncalcified, or “eccentric” calcification | |
Doubling time | Less than one month; more than one year | One month to one year |
References
- ↑ Ost D, Fein AM, Feinsilver SH (2003). "Clinical practice. The solitary pulmonary nodule". N. Engl. J. Med. 348 (25): 2535–42. doi:10.1056/NEJMcp012290. PMID 12815140. Unknown parameter
|month=
ignored (help) - ↑ Albert RH, Russell JJ (2009). "Evaluation of the solitary pulmonary nodule". Am Fam Physician. 80 (8): 827–31. PMID 19835344.
- ↑ Solitary Pulmonary Nodule: Morphological Evaluation. http://pubs.rsna.org/doi/pdf/10.1148/radiographics.20.1.g00ja0343 Accessed on March 15, 2016