Solitary pulmonary nodule

Changed by Eric F Greif, 20 Nov 2015

Updates to Article Attributes

Body was changed:

Solitary pulmonary nodule (SPN) is defined as a relatively well defined round or oval pulmonary parenchymal lesion equal or smaller than 30 mm in diameter. It is surrounded by pulmonary parenchyma and/or visceral visceral pleura and is not associated with lymphadenopathy, atelectasis, or pneumonia 9.

Questions to ask when you want to approach a solitary pulmonary nodule :

  • is the lesion solitary?
  • is it intrapulmonary?
  • is the lesion a nodule?
    • should be a discrete round oval opacity 4-30 mm in diameter; a lesion >30mm is a mass not a nodule
    • should not be linear or angular

Differential diagnosis

There are many causes of solitary pulmonary nodules (SPN)'s, including:

Mimics

  • nipple shadow
  • cutaneous lesion (e.g. wart, mole)
  • rib fracture or other bone lesion
  • vanishingpseudotumour of congestive heart failure

See also

  • -<p><strong>Solitary pulmonary nodule (SPN) </strong>is defined as a relatively well defined round or oval pulmonary parenchymal lesion equal or smaller than 30 mm in diameter. It is surrounded by pulmonary parenchyma and/or visceral pleura and is not associated with <a href="/articles/lymph-node-enlargement">lymphadenopathy</a>, atelectasis, or pneumonia <sup>9</sup>.</p><p>Questions to ask when you want to approach a<strong> solitary pulmonary nodule</strong> :</p><ul>
  • +<p><strong>Solitary pulmonary nodule (SPN) </strong>is defined as a relatively well defined round or oval pulmonary parenchymal lesion equal or smaller than 30 mm in diameter. It is surrounded by pulmonary parenchyma and/or visceral pleura and is not associated with <a href="/articles/lymph-node-enlargement">lymphadenopathy</a>, atelectasis, or pneumonia <sup>9</sup>.</p><p>Questions to ask when you want to approach a<strong> solitary pulmonary nodule</strong> :</p><ul>
  • -<li><a href="/articles/pulmonary-hamartoma">pulmonary hamartoma</a></li>
  • +<li><a href="/articles/pulmonary-hamartoma">pulmonary hamartoma</a></li>
  • -<li>vanishing <a href="/articles/pulmonary-pseudotumour">pseudotumour</a> of congestive heart failure</li>
  • +<li>vanishing <a href="/articles/pulmonary-pseudotumour">pseudotumour</a> of congestive heart failure</li>
Images Changes:

Image 5 Nuclear medicine (Axial lung window) ( create )

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