23 results
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
Patterns - Differential ... • Chronic Ground ... Hypersensitivity Pneumonia ... , COP, Chronic Eos ... Sarcoidosis, NSIP, COP
It is very important to differentiate between acute consolidation and chronic consolidation, because it will limit
- Chronic post-infection ... (OP) or chronic ... proteinaceous material ... Radiology #Pulmonary #CXR ... #Chronic #Differential
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
Differential diagnosis ... (OP) and chronic ... OP is organizing ... called cryptogenic (COP ... Radiology #Pulmonary #CXR
HRCT findings in OP
- Bilateral peripheral consolidations, sharply demarcated.
- Consolidations may be migratory.
- Lesions may show
HRCT findings in OP ... consolidations of OP ... such as lymphoma, infection ... Clinical #Radiology #CTChest ... #COP #Cryptogenic
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
identified, Strep pneumoniae ... heart failure, COPD ... Evaluation: Imaging (CXR ... /- High res CT chest ... diagnosis #evaluation #differential
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
(COP), Respiratory ... (DIP), Acute interstitial ... pneumonia (AIP) ... : Acute, Chronic ... ILD #diagnosis #differential
Acute and Chronic Causes of Dyspnea - Differential Diagnosis
Pulmonary/Chest Wall:
 • Acute: Trauma, COPD exacerbation, Asthma
Acute and Chronic ... Diagnosis Pulmonary/Chest ... Pleural effusion, Pneumonia ... : Asthma, COPD, ... , Anaphylaxis, Infection
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... in HIV - Differential ... • Pleuritic CP ... Abdominal pain, chronic ... AIDS #pulmonary #differential
Differential diagnosis of the reversed halo sign (RHS). AIA, angioinvasive aspergillosis; AIS, adenocarcinoma in situ; COP,
Differential diagnosis ... adenocarcinoma in situ; COP ... ; OP, organising ... with symmetrical bilateral ... hypersensitivity pneumonitis, infection
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
symptomatology Differential ... allopurinol), Infection ... , C3, C4, anti-CCP ... • CXR (diffuse ... high resolution chest