Fact-sheet: Lepidic adenocarcinoma of lung
- Bronchioloalveolar carcinoma
Updated on 09/25/2019 at 4:51 PM
View all RADEOS cases associated with this fact-sheet
Definition
Well-differentiated adenocarcinoma subtype arising from type II alveolar epithelial cells, itself presenting two subtypes: mucinous (80%) and non-mucinous (20%)
Clinical features
Risk factor: smoking.
Often asymptomatic.
Otherwise pleuritic pain, cough, hemoptysis, bronchorrhea, dyspnea, weight loss, hyperthermia
CT
LOCAL FORM
- Ground-glass nodule
- Isolated well-defined nodule that may show an air bronchogram, linear extensions toward the pleura, spiculated margins (73%), central necrosis, heterogeneous density.
- Confined to a single lobe
- Slow growth
- No atelectasis
- FDG PET/CT negative (55%)
DIFFUSE FORM
- Diffuse consolidation
- Lobar form
- Multinodular form
