Dr. Gerald Diaz @GeraldMD
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Board Certified Internal Medicine Hospitalist, GrepMed Editor in Chief πŸ‡΅πŸ‡­ πŸ‡ΊπŸ‡Έ - Sign up for an account to like, bookmark and upload images to contribute to our community platform. Follow us on IG: https://www.instagram.com/grepmed/ | Twitter: https://twitter.com/grepmeded/
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Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... pattern The algorithm ... centrilobular nodules ... HRCT #CTChest #NodularPattern ... #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
perilymphatic distribution ... perilymphatic distribution ... #Pattern #NodularPattern ... Differential #Comparison #Table ... #RadiologyAssistant
Here are the most common examples of these four patterns on a chest x-ray (click image
opacities - Fine Nodular ... interstitial opacities Nodule ... Solitary Pulmonary Nodule ... - Multiple Masses ... #Patterns #RadiologyAssistant
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... centrilobular nodules ... perilymphatic distribution ... Pattern #Comparison #Table ... #RadiologyAssistant
The distribution of nodules shown on HRCT is the most important factor in making an accurate
of nodules shown ... In most cases small ... nodules can be ... Pulmonary #HRCT #NodularPattern ... Comparison #Diagram #RadiologyAssistant
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
Nodular pattern( ... Sarcoidosis: nodules ... perilymphatic distribution ... histiocytosis: early nodular ... HRCT #CTChest #Nodular
Sarcoidosis
On a CXR sarcoidosis usually first presents with hilar and mediastinal lymphadenopathy (example).
Parenchymal disease can present
can present as consolidation ... presentation is a fine nodules ... When these small nodules ... NodularInterstitial #Nodular ... #Sarcoidosis #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Nodular LCH: - Sarcoidosis ... perilymphatic distribution ... cysts, evenly distribution ... Differential #Comparison #Table ... #RadiologyAssistant
Based on the images alone, it is usually not possible to determine the cause of the
determine the cause ... of the consolidation ... of x-rays with consolidation ... in fact this is nodular ... #Causes #RadiologyAssistant
On the left a typical case of perilymphatic distribution of nodules in a patient with sarcoidosis.
Notice
of nodules in a ... Notice the nodules ... carefully for these nodules ... the majority of nodules ... #RadiologyAssistant