Oct 14, 2024 · UIP pattern at CT has specific diagnostic criteria on HRCT 16 which include honeycombing, traction bronchiectasis and traction bronchiolectasis. The distribution is often widespread, asymmetric, and heterogeneous but with subpleural and basal predominance 23.

Jun 19, 2024 · This helps radiologists to determine the certainty of usual interstitial pneumonia (UIP) diagnosis based on HRCT chest findings. The importance of this guideline is that (definite) UIP pattern on chest HRCT precludes the need for tissue diagnosis 1,2,5.

Jun 19, 2024 · In 2018, the Fleischner Society provided updated diagnostic HRCT criteria for usual interstitial pneumonia (UIP) pattern based on literature review and the expert opinion of members.

UIP is a histological term adopted to describe a pattern of interstitial fibrosis characterized by peripheral and basal interstitial fibrosis and presence of honeycombing cysts.

Case Discussion These findings are consistent with UIP pattern. UIP has distinctive HRCT findings. If the UIP pattern is of unknown cause (i.e. idiopathic), the disease is called idiopathic pulmonary fibrosis (IPF).

Feb 5, 2025 · In general, non-specific interstitial pneumonia (NSIP) carries a much more favorable prognosis than a usual interstitial pneumonia (UIP) pattern, with a 90% 5-year survival rate for the cellular subtype and a ~60% (range 45-90%) 5-year survival for the fibrotic subtype.

Jun 16, 2024 · CT DIP is usually characterized by diffuse ground-glass opacities (sometimes has a granular or nodular texture), which correlate histologically with the spatially homogeneous intra-alveolar accumulation of macrophages and thickening of alveolar septa:

May 2, 2023 · The alveolar damage comprises three phases: an acute exudative phase a subsequent organizing phase a final fibrotic phase Radiographic features The clinical context is vital for correct image interpretation. Plain radiograph Non-specific and often shows bilateral patchy airspace opacification. CT

Mar 10, 2025 · On HRCT, scleroderma may appear in either a non-specific interstitial pneumonitis (NSIP) (more common 5) or usual interstitial pneumonitis (UIP) pattern. Interstitial lung changes in scleroderma are less extensive and less coarse than those with idiopathic pulmonary fibrosis 3 with most patients only show a limited portion of lung involvement ...

Diagnostic HRCT criteria for usual interstitial pneumonia (UIP) pattern - ATS/ERS/JRS/ALAT (2018)