CTICasesMinimally Invasive Pulmonary Adenocarcinoma
Imaging findings
High-resolution CT shows a small, predominantly ground-glass nodule in the left lung apex with a tiny central solid component. Comparison between initial and follow-up CT scans demonstrates a subtle but definite increase in the size of the solid portion over several months. Histopathology confirmed a microinvasive adenocarcinoma of the lung.
Key takeaways
Part-solid nodules require careful, thin-section follow-up as the development or growth of a solid component is a strong indicator of invasive behavior in the adenocarcinoma spectrum. Under current classification systems, a microinvasive adenocarcinoma is characterized by a predominant lepidic growth pattern (ground-glass on CT) with an invasive focus (solid component on CT) measuring 5 mm or less in its largest dimension.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Type B Aortic DissectionVascular
- Extrapleural Hematoma and Esophageal RuptureTrauma
- IgG4-Related DiseaseAutoimmune
- Pulmonary Artery SarcomaNeoplastic
- Pembrolizumab-Induced Sarcoid-Like ReactionInflammatory
- Metastatic Renal Cell CarcinomaNeoplastic
- Invasive Pulmonary AdenocarcinomaNeoplastic
- Post-LVAD Diaphragmatic DefectIatrogenic
See all cases from May 5, 2017 →