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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Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
Central distribution ... HRCT #ChestCT #Differential ... #Table #Distribution ... #Central #Peripheral ... #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... emphysema: no walls, central ... Cystic #Cysts #Differential ... #Comparison #Table ... #RadiologyAssistant
Mediastinal masses are discussed in more detail in Mediastinal masses.
Here is just a brief overview. #Diagnosis
Mediastinal #Mass #Differential ... #Table #Anterior ... Middle #Posterior #RadiologyAssistant
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
HRCT #ChestCT #Differential ... #Table #Distribution ... #Upper #Lower #RadiologyAssistant
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
in number, the distribution ... nodules along the central ... periplymphatic distribution ... MultipleNodules #Nodules #Differential ... #Algorithm #RadiologyAssistant
Maculopapular Rashes - THE ALGORITHMIC APPROACH 

The term maculopapule is a portmanteau, a combination
of macule and
macule and papule (Table ... based on the distribution ... Patients with centrally ... Those with centrally ... require emergent evaluation
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
perilymphatic distribution ... perilymphatic distribution ... NodularPattern #Differential ... #Comparison #Table ... #RadiologyAssistant
Differential diagnosis of Lymphangitic Carcinomatosis. 
On the left multiple diseases showing septal thickening:
1. Lymphangitic carcinomatosis: irregular
Differential diagnosis ... gravitational distribution ... thickening of the central ... #Comparison #Table ... #RadiologyAssistant
Non-ACS Myocardial Injury - Elevated Troponin Differential Diagnosis and Workup Algorithm

 β€’ Chronic Myocardial Injury: End
Elevated Troponin Differential ... Diagnosis and Workup ... , Non-Vascular Distribution ... Occlusion β€’ Stable ... Elevated #Troponin #Differential
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
Differential diagnosis ... The table summarizes ... to think of the differential ... the pattern of distribution ... #Table #RadiologyAssistant