6 results
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
In the differential ... diagnosis there ... the surrounding lung ... #Radiology #CTChest ... #Cavity #Cyst #
Radiographic appearances of pulmonary diseases in HIV/AIDS Patients
 • Diffuse Interstitial Infiltrates: Pneumocystis jirovecii, M.tuberculosis, Histoplasma
toxicity, Pulmonary edema ... Actinomyces spp., NHL; Lung ... pneumonia • Cavitary ... #diagnosis #chestCT ... #radiology
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Left Shunt - Anatomic ... Mismatch: Pulmonary Edema ... Gradient #alveolar #arterial ... Hypoxia #hypoxemia #differential ... #diagnosis
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
embolism, Pulm edema ... failure, COPD, Lung ... CXR +/- High res CT ... HIVAIDS #workup #diagnosis ... #evaluation #differential
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
in HIV - Differential ... Diagnosis Framework ... • CT: Halo sign ... fever, cough and cavitary ... AIDS #pulmonary #differential
CT will also demonstrate signs of congestive heart failure.
On the image on the left notice the
CT will also demonstrate ... be high in the differential ... diagnostic list ... #Clinical #Radiology ... #CTChest #CHF #