13 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... on HRCT Most of ... On HRCT there are ... Diagnosis #Radiology #Pulmonary ... #Differential #
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
The fourth pattern ... low attenuation pattern ... on the basis of HRCT ... Diagnosis #Radiology #Pulmonary ... LowAttenuation #Differential
Perilymphatic distribution
Perilymphatic nodules are most commonly seen in sarcoidosis.
They also occur in silicosis, coal-worker's pneumoconiosis and
the overlap in differential ... the reticular pattern ... Diagnosis #Radiology #Pulmonary ... #HRCT #CTChest ... Perilymphatic #Nodular #Differential
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular pattern ... are visible, the pattern ... Diagnosis #Radiology #Pulmonary ... #HRCT #CTChest ... MultipleNodules #Nodules #Differential
Figure 3 HRCT-LUS correlation in normal lung, pulmonary congestion, rheumatoid lung disease, idiopathic pulmonary fibrosis.
Notes: (A)
Figure 3 HRCT-LUS ... in normal lung, pulmonary ... artifact); (G) UIP pattern ... Clinical #Diagnosis #HRCT ... #POCUS #Lung #Correlation
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
significant • Pattern ... : The ANA patterns ... Sjogren's Syndrome (SS ... , Interstitial Pulmonary ... rheumatology #diagnosis #differential
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
resolution of the HRCT ... in ground glass pattern ... Diagnosis #Radiology #Pulmonary ... #GroundGlass #Differential
Erythrocytosis - Polycythemia Differential Diagnosis Algorithm

Elevated Hemoglobin:
 • Males: Hb > 16.5 g/dL/HCT ≥ 49%
 •
- Polycythemia Differential ... Hb > 16.5 g/dL/HCT ... Hypoxia-driven: Cardiac/pulmonary ... Polycythemia #Vera #PV #Differential ... Diagnosis #Algorithm #hematology
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
cells results in a pattern ... has a limited differential ... in interstitial pulmonary ... #HRCT #CTChest ... SeptalThickening #Differential
On the left a smoker with RB-ILD with subtle HRCT-findings.
The dominant pattern is ground glass opacification.
Additional
RB-ILD with subtle HRCT-findings ... The dominant pattern ... there is a broad differential ... interpretion of the HRCT ... probably would be pulmonary