103 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... LIP #Clinical #Diagnosis ... #Radiology #CTChest ... Differential #Comparison #Table ... #RadiologyAssistant
Thomas' Test for Hip Flexure Contracture

Thomas' Test assesses for hip flexure contracture.
One hip is maximally flexed
the patient's chest ... flexes at the knee and ... rises off the table ... #Contracture #PhysicalExam ... #sports #msk #orthopedics
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Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
next to pleura and ... #Clinical #Radiology ... #HRCT #CTChest ... Pattern #Comparison #Table ... #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
multiple round and ... #Clinical #Radiology ... #HRCT #CTChest ... Pattern #Comparison #Table ... #RadiologyAssistant
Consolidation is synonymous with airspace disease.
When you think of the causes of consolidation, think of 'what
or tumor cells (Table ... in the alveoli and ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... #Differential #RadiologyAssistant
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
fibrosis perihilar and ... #Clinical #Radiology ... #HRCT #CTChest ... Pattern #Comparison #Table ... #RadiologyAssistant
On the left three different patients with lung cysts.
From left to right: Lymphangiomyomatosis, LIP and Langerhans
Lymphangiomyomatosis, LIP and ... #Clinical #Diagnosis ... #Radiology #CTChest ... Histiocytosis #RadiologyAssistant
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
in sarcoidosis and ... eosinophilic pneumonia and ... #Diagnosis #Radiology ... #Differential #Table ... Central #Peripheral #RadiologyAssistant
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
glass opacity and ... consolidation #Clinical #Radiology ... #HRCT #CTChest ... Pattern #Comparison #Table ... #RadiologyAssistant
Since these risk factors are numerous and have different effects on the malignancy risk, it is
factors are numerous and ... malignancy [8](Table ... #Diagnosis #EBM ... #Radiology #Pulmonary ... PulmonaryNodule #RadiologyAssistant