consolidation
A radiological pattern of dense lung opacification that obscures vascular markings, often indicating pneumonia or tumor.
Full Definition
Consolidation appears on chest imaging as areas of increased lung density that obscure normal bronchial and vascular markings, representing replacement of air in alveoli with fluid, cells, or other material. In thoracic oncology contexts, consolidation may indicate pneumonic-type adenocarcinoma, post-obstructive pneumonia secondary to bronchial obstruction by tumor, or treatment-related pneumonitis. Unlike ground-glass opacity, consolidation completely obscures underlying structures and typically appears denser on CT imaging. The pattern, distribution, and clinical context help distinguish malignant consolidation from infectious or inflammatory causes, though tissue sampling is often required for definitive diagnosis.
Usage
Usage note: In thoracic oncology, distinguish between infectious and malignant causes of consolidation.
In Context
- "The right lower lobe consolidation persisted despite antibiotic treatment, raising concern for malignancy." — Clinical note
- "Post-radiation consolidation developed in the treatment field six weeks after completion of therapy." — Follow-up report