CTICasesIncidental Lung Adenocarcinoma of the Superior Segment
Imaging findings
Lateral chest radiograph shows a subtle, rounded, non-calcified opacity in the posterior right mid-lung projecting directly over the vertebral body, which is invisible on the frontal view and associated with subtle obscuration of the posterior wall of the bronchus intermedius. Contrast-enhanced chest CT confirms a solid mass in the superior segment of the right lower lobe, with associated small, tumor-positive subcarinal lymph nodes.
Key takeaways
The lateral chest radiograph is crucial for detecting lesions in "hidden" areas of the chest, such as the posterior basal and superior segments of the lower lobes. Small masses projecting over the lower spine or obscuring the posterior wall of the bronchus intermedius should raise suspicion for primary lung malignancies like adenocarcinoma.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Diffuse Large B-Cell Lymphoma of the Lung and PericardiumNeoplastic
- Disseminated Varicella Pneumonia and Unilateral Metastatic Pulmonary CalcificationInfection
- Left Upper Lobe Partial Anomalous Pulmonary Venous ReturnCongenital
- Traumatic Aortic PseudoaneurysmTrauma
- Sternal Metastasis from Prostate CancerNeoplastic
- Bronchial CarcinoidNeoplastic
- Rib PlasmacytomaNeoplastic
- Aneurysm of an Aberrant Right Subclavian ArteryVascular
See all cases from February 1, 2017 →
Related Neoplastic cases
- Lipomatous Hypertrophy of the Interatrial Septum
- Rib Hemangioma
- Combined Right Upper and Middle Lobe Collapse due to Central Bronchial Obstruction
- T-cell Lymphoblastic Lymphoma
- Metastatic Malignant Peripheral Nerve Sheath Tumor in Neurofibromatosis Type 1
- Cavitary Pulmonary Metastases from Thymic Carcinoma