Diffuse pulmonary nodules
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Diffuse pulmonary nodules are usually seen as multiple pulmonary nodular opacifications on a HRCT chest scan. They can signify disease processes affecting either the interstitium or the airspace. They can range from a few mmmillimetres to upto 1cmup to 1 cm and when very small and numerous there can be some overlap with the term miliary nodules.
They can arise from a vast number of patholgicalpathological entities.
Differential diagnosis
Differentials to be considered incude include
- sarcoidosis
- silicosis
- respiratory bronchiolitis (infective or non infective)
- other forms of infection
- tuberculosis - bronchogenic disseminated tuberculosis 2
- non-tuberculous
mycobactarialmycobacterial infection - other infective bronchiolitides
- fungal
infctionsinfections such as forms of aspergillus infection -
septic emboli
formfrom infective endocarditis or infected tube
- small airway disease
- hypersensitivity pneumonitis
- malignant entities
- nodular metastases
- bronchoalveolar carcinoma (now known as AIS-MIA)
- forms of pulmonary lymphoma
- kaposi sarcoma
- other
miscellanousmiscellaneous conditions- granulomatosis with polyangitis
-
alveolar microlithiasis
- very: very dense - diffuse panbronchiolitis
- diffuse idiopathic pulmonary neuroendocrine cell hyperplasia
-
pulmonary amyloidosis
- nodular: nodular forms 2
Related articles
-<p><strong>Diffuse pulmonary nodules </strong>are usually seen as multiple <a href="/articles/pulmonary-nodular-opacifications">pulmonary nodular opacifications</a> on a HRCT chest scan. They can signify disease processes affecting either the interstitium or the airspace. They can range from a few mm to upto 1cm and when very small and numerous there can be some overlap with the term <a href="/articles/miliary_opacities">miliary nodules</a>. </p><p>They can arise from a vast number of patholgical entities.</p><p><strong>Differentials to be considered incude</strong></p><ul>- +<p><strong>Diffuse pulmonary nodules </strong>are usually seen as multiple <a href="/articles/pulmonary-nodular-opacifications">pulmonary nodular opacifications</a> on a HRCT chest scan. They can signify disease processes affecting either the interstitium or the airspace. They can range from a few millimetres to up to 1 cm and when very small and numerous there can be some overlap with the term <a href="/articles/miliary-opacities">miliary nodules</a>. <span style="line-height:1.6em">They can arise from a vast number of pathological entities.</span></p><h4>Differential diagnosis</h4><p>Differentials to be considered include</p><ul>
-<li>non-tuberculous mycobactarial infection</li>- +<li>non-tuberculous mycobacterial infection</li>
-<li>fungal infctions such as forms of <a href="/articles/pulmonary-aspergillosis">aspergillus</a> infection</li>- +<li>fungal infections such as forms of <a href="/articles/pulmonary-aspergillosis">aspergillus</a> infection</li>
-<a href="/articles/septic-pulmonary-emboli">septic emboli</a> form endocarditis or infected tube </li>- +<a href="/articles/septic-pulmonary-emboli">septic emboli</a> from infective endocarditis or infected tube </li>
-<li>nodular <a href="/articles/endobronchial_metastases">metastases</a>- +<li>nodular <a href="/articles/endobronchial-metastases">metastases</a>
-<li>forms of <a title="Pulmonary lymphoma" href="/articles/pulmonary-lymphoma">pulmonary lymphoma</a>- +<li>forms of <a href="/articles/pulmonary-lymphoma">pulmonary lymphoma</a>
-<li>other miscellanous conditions<ul>-<li><a title="Granulomatosis with polyangitis (GPA)" href="/articles/granulomatosis-with-polyangitis">granulomatosis with polyangitis</a></li>- +<li>other miscellaneous conditions<ul>
- +<li><a href="/articles/granulomatosis-with-polyangitis">granulomatosis with polyangitis</a></li>
-<a href="/articles/alveolar-microlithiasis">alveolar microlithiasis</a> - very dense</li>- +<a href="/articles/pulmonary-alveolar-microlithiasis-1">alveolar microlithiasis</a>: very dense</li>
-<a href="/articles/pulmonary-amyloidosis">pulmonary amyloidosis</a> - nodular forms<sup> 2</sup>- +<a href="/articles/pulmonary-amyloidosis">pulmonary amyloidosis</a>: nodular forms<sup> 2</sup>
-</ul><p> </p>- +</ul>
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