CTICasesLarge Lung Carcinoma Mimicking Normal Radiograph
Imaging findings
Chest radiographs taken years apart appear initially normal, but retrospective comparison with chest CT reveals a very large, anterior/perihilar soft tissue mass in the right lung. The mass, despite its substantial size on CT, is highly difficult to detect on the frontal radiograph due to its anterior mediastinal/perihilar location and lack of significant contrast with adjacent structures.
Key takeaways
This case highlights the persistent diagnostic limitations of conventional chest radiography. Even very large pulmonary malignancies can remain hidden on frontal and lateral views if they are located in "blind spots" like the anterior hilum or mediastinal margins, emphasizing the need for a low threshold for CT in patients with persistent symptoms.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Novel Endotracheal Tube Design with Distal GapArtifact
- Endobronchial Mycobacterium avium Complex (MAC) InfectionInfection
- Bronchial Migration of a Tumor Fiducial MarkerIatrogenic
- Retained Surgical Sponge (Gossypiboma) in the MediastinumIatrogenic
- Aortic Valve Papillary FibroelastomaNeoplastic
- NUT Carcinoma of the LungNeoplastic
- Post-Radiation Accelerated Atherosclerosis and Radiation OsteitisInflammatory
- Transcostal Lung Herniation with Localized Parenchymal FibrosisOther
See all cases from August 6, 2017 →
Related Neoplastic cases
- Malignant Solitary Fibrous Tumor of Pleura with Metastatic Papillary Thyroid Carcinoma
- Right Ventricular Outflow Tract Papillary Fibroelastoma
- Hypervascular Parietal Pleural Solitary Fibrous Tumor
- Massive Hiatal Hernia with Intrathoracic Appendix and Recurrent Esophageal Cancer with Left Atrial Tumor Thrombus
- Invasive Mucinous Adenocarcinoma Mimicking Interstitial Lung Disease
- Tracheal Rosai-Dorfman Disease