11 results
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
• Pleuritic chest ... • CT: Halo sign ... Lymphadenopathy, Chest ... : • Chest pain ... , cough and cavitary
Venn Diagram - Does this patient have pneumonia?
Diagnosis is generally based on three lines of evidence:
evidence of a chest ... infiltrate (e.g., CXR ... , CT, ultrasound ... Inflammation (e.g., fever ... pain) and signs
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
lesions than the chest ... feeding vessel sign ... #Clinical #Radiology ... #CXR #CTChest # ... #SepticEmboli #Cavity
Good example of 'shred sign' in a patient with fever, cough and shortness of breath. 

This
example of 'shred sign ... a patient with fever ... on CXR/CT imaging ... #photo #ultrasound ... #lung #pulmonary
Cavitation - Pneumonia
In virulent pyogenic infections an abscess may form within the consolidated lung as a
the consolidated lung ... be seen on the chest ... #Clinical #Radiology ... #CXR #CTChest # ... Cavity #Pneumonia
Based on the images alone, it is usually not possible to determine the cause of the
between these chest ... Lobar pneumonia ... Organizing pneumonia ... nodular interstitial lung ... #CXR #Lobar #Consolidation
Heart failure with Reduced Ejection Fraction (HFrEF)
Clinical Presentation
1. Typical symptoms: dyspnea, orthopnea paroxysmal noctumal dyspnea, fatigue,
: weight gain, lung ... HFrEF may lack lung ... Chest x-ray: signs ... → no signs of CXR ... diagnosis #management #cardiology
Increased pulmonary venous pressure is related to the pulmonary capillary wedge pressure (PCWP) and can be
features on the chest ... chronic obstructive lung ... #Diagnosis #Radiology ... #CHF #CXR #Stages ... #Findings #Signs
Preoperative Risk Evaluation

Major Pre-Op Questions:
1. Does the patient have any modifiable risk factors that could be
neuroexam - Oral cavity ... disease b) CHF ... one post op Cardiology ... change CV risk Chest ... unless prior heart/lung
Stage III - Alveolar edema
This stage is characterized by continued fluid leakage into the interstitium, which
influenced by: Gravity ... position Obstructive lung ... The following signs ... #Clinical #Radiology ... #CXR #CHF #Alveolar