12 results
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Hypersensitivity ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table ... #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Hypersensitivity ... Clinical #Diagnosis #Radiology ... #Pulmonary #CTChest ... #Differential #Comparison ... #Table #RadiologyAssistant
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
multiple ill-defined nodules ... CT demonstrates ... #Clinical #Radiology ... #SepticEmboli #Cavity ... #RadiologyAssistant
Mucoid impaction
Mucus plugs or mucoid impaction can mimick the appearance of lung nodules or a mass.
Sometimes
nodules or a mass ... ABPA is a hypersensitivity ... CT demonstrated ... #Clinical #Radiology ... #CXR #CTChest #
Subacute hypersensitivity pneumonitis
The key findings in the subacute hypersensitivity pneumonitis are:
ill-defined centrilobular nodules of ground-glass opacity
centrilobular nodules ... opacity due to lung ... #Clinical #Radiology ... #CTChest #Hypersensitivity ... Centrilobular #RadiologyAssistant
Lungcancer
10% of lungcancers cavitate, most commonly squamous cell carcinoma.
Small cell lungcancer does not cavitate.
Bronchoalveolar carcinoma, or
Here a chest x-ray ... large cavitating lung ... cancer, which started ... #Clinical #Radiology ... #Cavitary #RadiologyAssistant
On the left another case of Langerhans' cell histiocytosis.
It started as small noduli, which progressed over
It started as small ... replace normal lung ... #Clinical #Radiology ... #CTChest #LCH # ... Histiocytosis #Cystic #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
the surrounding lung ... Clinical #Diagnosis #Radiology ... #CTChest #Cavity ... Cyst #Emphysema #Comparison ... #RadiologyAssistant
Differential diagnosis of TB.
Primary TB: Acute bacterial pneumonia
Secondary TB: Sarcoidosis, Silicosis, Pneumoconiosis
Endobronchial spread of TB: Bronchopneumonia,
Bronchopneumonia, Hypersensitivity ... Clinical #Diagnosis #Radiology ... #CTChest #MiliaryTB ... #Comparison #Metastases ... #Mimic #RadiologyAssistant
In a later stage the nodules start to cavitate and become cysts.
These cysts start as round
later stage the nodules ... #Clinical #Radiology ... #CTChest #LCH # ... Histiocytosis #Cavitary ... #RadiologyAssistant