Solitary pulmonary nodule

Changed by Henry Knipe, 23 Jun 2014

Updates to Article Attributes

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A solitary pulmonary nodule (SPN) is defined as a round or oval opacity smaller than 3 cm30mm in diameter. It is completely surrounded by pulmonary parenchyma 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 intra pulmonary intrapulmonary?
    • Is the lesion a nodule?Should
      • should be a discrete round oval opacity 4 - 30-30 mm in diameter. Should
      • should not be linear or angular. A
      • a mass more than 3 cm>30mm is usually a bronchogenic carcinoma.

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
  • vanishing pseudotumour of congestive heart failure

See also

  • -<p>A <strong>solitary pulmonary nodule (SPN) </strong>is defined as a round or oval opacity smaller than 3 cm in diameter. It is completely surrounded by pulmonary parenchyma and is not associated with lymphadenopathy, atelectasis, or pneumonia <sup>9</sup>.</p><p>Questions to ask when you want to approach a<strong> solitary pulmonary nodule</strong> :</p><ol>
  • -<li>Is the lesion solitary ?</li>
  • -<li>Is it intra pulmonary ?</li>
  • -<li>Is the lesion a nodule?<br>Should be a discrete round oval opacity 4 - 30 mm in diameter. Should not be linear or angular. A mass more than 3 cm is usually a <a href="/articles/bronchogenic-carcinoma">bronchogenic carcinoma</a>.</li>
  • -</ol><h4>Differential diagnosis</h4><p>There are many causes of <strong>solitary pulmonary nodules (SPN)'s</strong>, including:</p><ul>
  • +<p>A <strong>solitary pulmonary nodule (SPN) </strong>is defined as a round or oval opacity smaller than 30mm in diameter. It is completely surrounded by pulmonary parenchyma and is not associated with <a title="Lymphadenopathy" 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>Is the lesion solitary?</li>
  • +<li>Is it intrapulmonary?</li>
  • +<li>Is the lesion a nodule?<ul>
  • +<li>should be a discrete round oval opacity 4-30 mm in diameter</li>
  • +<li>should not be linear or angular</li>
  • +<li>a mass &gt;30mm is usually a <a href="/articles/lung-cancer-3">bronchogenic carcinoma</a>
  • +</li>
  • +</ul>
  • +</li>
  • +</ul><h4>Differential diagnosis</h4><p>There are many causes of <strong>solitary pulmonary nodules (SPN)'s</strong>, including:</p><ul>
  • -<li><a href="/articles/bronchogenic-carcinoma">bronchogenic carcinoma</a></li>
  • +<li><a href="/articles/lung-cancer-3">bronchogenic carcinoma</a></li>
  • -<li>cutaneous lesion (e.g., wart, mole)</li>
  • +<li>cutaneous lesion (e.g. wart, mole)</li>
  • -</ul><h4>See also</h4><ul><li><a href="/articles/pulmonary-nodule-1">pulmonary nodules</a></li></ul>
  • +</ul><h4>See also</h4><ul>
  • +<li><a href="/articles/pulmonary-nodule-1">pulmonary nodules</a></li>
  • +<li><a href="/articles/coin-lesion">coin lesion</a></li>
  • +</ul>

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