CTICasesPrimary Pulmonary Ewing's Sarcoma
Imaging findings
A 23-year-old patient presented with an unusual, large opacity in the left lower chest, possibly initially diagnosed as pneumonia but failing to resolve. CT revealed a large lesion in the left lower lobe, close to the hilar region, associated with a small left pleural effusion, and some slightly enlarged mediastinal lymph nodes. Biopsy confirmed it as a sarcoma, with positive EWS or one translocation and characteristic histology.
Key takeaways
In young patients, persistent pulmonary opacities that do not resolve and are not explained by infection should raise suspicion for primary pulmonary tumors, including rare entities like primary pulmonary Ewing's sarcoma. Histopathology and specific genetic testing (e.g., EWS or one translocation) are crucial for definitive diagnosis of such unusual sarcomas.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Hidden Lung CancerNeoplastic
- Good SyndromeAutoimmune
- Bicuspid Aortic Valve with AortopathyCongenital
- Pentalogy of FallotCongenital
- Mediastinal Germ Cell Tumor (Yolk Sac Tumor)Neoplastic
- Right Atrial Myxoma extending into SVCNeoplastic
See all cases from October 7, 2016 →
Related Neoplastic cases
- Spinal Hemangioblastoma
- Reverse Takotsubo Cardiomyopathy Secondary to Paraganglioma
- Diffuse Lymphatic Congestion/Deposition (Etiology Pending)
- Left Atrial Myxoma with Variable Appearance on MRI
- Thymic Carcinoma with Initial Regression and Subsequent Recurrence/Growth
- Malignant Fibrous Tumor of the Pleura (Mediastinal Origin)