42 results
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
- Sarcoidosis Lower ... is seen in: - UIP ... HRCT #ChestCT #Differential ... Distribution #Upper #Lower ... #RadiologyAssistant
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
pneumonia and UIP ... HRCT #ChestCT #Differential ... Central #Peripheral #RadiologyAssistant
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
. - Lower zone predominance ... : UIP, NSIP, DIP ... #GroundGlass #Differential ... #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Lung cysts (LAM, LIP ... LowAttenuation #Differential ... Emphysema #SignetRing #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... central dot. - LIP ... Cystic #Cysts #Differential ... Comparison #Table #RadiologyAssistant
Consolidation is synonymous with airspace disease.
When you think of the causes of consolidation, think of 'what
fibrosis as in UIP ... Consolidation #Differential ... #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... in many cases UIP ... Interstitial #Pattern #Differential ... #RadiologyAssistant
Solid pulmonary nodules can represent various etiologies:
- benign granulomas
- focal scar
- intrapulmonary lymph nodes
- primary malignancies
-
need no follow up ... that can help to differentiate ... Follow-up is therefore ... PulmonaryNodule #Followup #RadiologyAssistant
Causes of Urinary Tract Obstruction - Differential Diagnosis Algorithm
Upper Tract - Bladder NOT distended on ultrasound,
Obstruction - Differential ... NOT distended on ultrasound ... junction obstruction Lower ... Distended bladder on ultrasound ... #UrinaryTract #Differential
Ruptured Tubal Ectopic Pregnancy on Pelvic Ultrasound

Young female.  Lower abdominal pain/VB.  UCG pos. Soft
Pregnancy on Pelvic Ultrasound ... Lower abdominal ... Diagnosis/differential ... Pregnancy #Pelvis #Ultrasound