19 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Nodular LCH: - Sarcoidosis ... : 'signet ring sign ... central dot. - LIP #Clinical ... #Diagnosis #Radiology ... Comparison #Table #RadiologyAssistant
Tree in Bud Sign
The Tree-in-Bud sign represents Endobronchial spread in a linear branching pattern and centrilobular
Tree in Bud Sign ... linear branching pattern ... like cystic fibrosis ... #diagnosis #clinical ... #radiology #ChestCT
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
Nodular pattern( ... TB: Tree-in-bud ... before the typical cysts ... #Clinical #Radiology ... #Table #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... : reticular, nodular ... The cystic pattern ... #Diagnosis #Radiology ... #Differential #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
TB: Tree-in-bud ... before the typical cysts ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... Comparison #Table #RadiologyAssistant
Here are the most common examples of these four patterns on a chest x-ray (click image
opacities - Fine Nodular ... Nodule - Multiple Masses ... Atelectasis #Diagnosis ... #Clinical #Radiology ... #RadiologyAssistant
The distribution of nodules shown on HRCT is the most important factor in making an accurate
pattern. ... In most cases small ... and fissures, but ... #Diagnosis #Radiology ... Comparison #Diagram #RadiologyAssistant
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
was caused by multiple ... challenging differential diagnosis ... the central dot sign ... #Clinical #Radiology ... #RadiologyAssistant
Pulmonary complications of targeted therapy
-Immune checkpoint inhibitors (e.g. pembrolizumab)
-Pneumonitis is uncommon (~5% of patients) but can
checkpoint inhibitors (e.g ... There are case reports ... #Clinical #Diagnosis ... #Radiology #Honc ... PulmonaryComplications #Patterns
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
In many cases you ... to confirm the diagnosis ... heart failure, but ... #Clinical #Radiology ... #Honeycombing #RadiologyAssistant