13 results
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... - Differential Diagnosis ... Interstitial Edema, Alveolar ... #CT #Patterns # ... #pulmonary #radiology
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Pulmonary Infections ... in HIV-AIDS Bacterial ... Imaging (CXR +/- High ... res CT chest scan ... #workup #diagnosis
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Definition: Diffuse alveolar ... Differential Diagnosis ... infiltrates) → high ... resolution chest ... CT • Bronchoscopy
Notice that even within each lobe there is a gravity dependent difference in density.
This is only
even within each lobe ... exsudate due to infection ... #Clinical #Radiology ... #CTChest #CHF # ... Alveolar #Pulmonary
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
parenchyma Diagnosis ... : • HRCT (high-resolution ... chest CT) • Broncho-arterial ... , CCP, ANCA • HIV ... #differential #diagnosis
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
mucogenicum • HIV ... massiliense in CF ... Advanced HIV (CD4 ... Symptoms, Imaging, high ... res CT) • Exclusion
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... Diagnosis Framework ... • CT: Halo sign ... phagocytic function of alveolar ... #HIV #AIDS #pulmonary
CT will also demonstrate signs of congestive heart failure.
On the image on the left notice the
CT will also demonstrate ... the differential diagnostic ... presentation of alveolar ... #Clinical #Radiology ... #CTChest #CHF #
Congestive heart failure (CHF) is the result of insufficient output because of cardiac failure, high resistance
heart failure (CHF ... cardiac failure, high ... finally into the alveoli ... can be seen on a chest-film ... #Diagnosis #Radiology
Preoperative Risk Evaluation

Major Pre-Op Questions:
1. Does the patient have any modifiable risk factors that could be
Skin exam for infection ... disease b) CHF ... ASA class If high ... of Surgery: • High ... stratification #diagnosis