10 results
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
High Attenuation pattern ... end-stage with massive fibrosis ... consolidation #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Lung cysts (LAM, LIP ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... LowAttenuation #Differential ... #Diagram #Comparison
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
HRCT as seen in fibrosis ... in ground glass pattern ... bronchiolitis #Diagnosis #Radiology ... #Pulmonary #CTChest ... #GroundGlass #Differential
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
: 'signet ring sign ... central dot. - LIP ... Clinical #Diagnosis #Radiology ... #CTChest #Cystic ... #Comparison #Table
On the left a patient with DIP.
The HRCT shows diffuse areas of ground-glass density in the
and some mosaic pattern ... abnormalities and signs ... of fibrosis are ... smoking #Clinical #Radiology ... #CTChest #DIP #
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
chronic HP (right) Differential ... In chronic HP fibrotic ... Clinical #Diagnosis #Radiology ... #CTChest #UIP # ... Comparison #Chronic
On the left a patient who is treated with cytotoxic drugs for a hematologic malignancy.
The radiographic
patients with a UIP ... pattern or NSIP ... disease in the differential ... #Clinical #Radiology ... #CTChest #DrugInduced
Chronic hypersensitivity pneumonitis (2)
The case on the left shows an inspiratory and expiratory scan: the mosaic
scan: the mosaic pattern ... Signs of fibrosis ... included in the differential ... #Clinical #Radiology ... #CTChest #Chronic
Acute interstitial pneumonia (AIP, earlier named Hamman Rich Pneumonitis) is a rare idiopathic lung disease characterized
with subsequent fibrosis ... The histologic pattern ... There are areas ... #Clinical #Radiology ... #CTChest #AIP #
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
associated with signs ... temples, upper lip ... especially lower lip ... Christmas tree pattern ... dermatology #rash #differential