23 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
#Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison ... Emphysema #SignetRing #RadiologyAssistant
Sarcoidosis 
Non-caseating granulomas (Composed of T-helper & inflammatory cells) 
Clinical:
 • Disease fatal in 10% of
polyarthritis • Pulmonary ... exertion • Neurologic ... #Sarcoidosis #Diagnosis ... #Symptoms #Signs ... #Pulmonary
Extrapulmonary manifestations of COVID-19
 • Neurologic: Headaches, Dizziness, Encephalopathy, Guillain-Barré, Ageusia, Myalgia, Anosmia, Stroke
 • Renal:
of COVID-19 • Neurologic ... vein thrombosis, Pulmonary ... ischemia, Acute cor pulmonale ... Extrapulmonary #Diagnosis ... #Signs #Symptoms
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
#Clinical #Diagnosis ... #Radiology #Pulmonary ... #Differential #Comparison ... #Table #RadiologyAssistant
Asthma vs COPD Presentation and Diagnosis
Asthma:
 • Epidemiology: Age usually < 45, History (personal or family)
Presentation and Diagnosis ... is frequent • Symptoms ... pack years • Symptoms ... #Asthma #COPD #comparison ... #Diagnosis #pulmonary
Neurological Manifestations of Tuberculosis
Spinal Arachnoiditis & Polyradiculopathy:
 • Subacute onset of limb weakness, bladder/bowel dysfunction, muscle
Worsening of previous neurologic ... lymphadenopathy, pulmonary ... Children with pulmonary ... #Tuberculosis #diagnosis ... differential #TB #neurology
Differentiating Benign Paroxysmal Positional Vertigo (BPPV) From Vestibular Neuritis-Labyrinthitis
BENIGN PAROXYSMAL POSITIONAL VERTIGO
 • Age: More common
• Frequency of symptoms ... • Frequency of symptoms ... Hallpike test: Symptoms ... Labyrinthitis #diagnosis ... #neurology #comparison
Differential diagnosis of Lymphangitic Carcinomatosis. 
On the left multiple diseases showing septal thickening:
1. Lymphangitic carcinomatosis: irregular
Differential diagnosis ... Cardiogenic pulmonary ... Cardiogenic pulmonary ... #Differential #Comparison ... #Table #RadiologyAssistant
Cytomegalovirus (CMV) in HIV-AIDS Patients
Cytomegalovirus (CMV): double-stranded DNA virus, herpesvirus family.
CMV infection: virus isolation or detection
regardless of symptoms ... Diagnosis: Quantitative ... 50 or less: • Neurologic ... Pancreatitis • Pulmonary ... CMV #HIV #AIDS #diagnosis
The distribution of nodules shown on HRCT is the most important factor in making an accurate
making an accurate diagnosis ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... Perilymphatic #Comparison ... #Diagram #RadiologyAssistant