CTICasesUnilateral Pleural Metastasis from Osteosarcoma
▶ Watch on YouTube — age-restricted, cannot embed here
[...]. Unilateral Pleural Metastasis from Osteosarcoma. CTICases. Published March 24, 2014. https://cticases.com/c/znash
Imaging findings
Chest radiograph and CT show a massive, unilateral, rind-like calcification along the right pleural space. On CT, the calcific thickening is thick, fuzzy, and ill-defined, showing local growth into the adjacent soft tissues and the central canal of the spine. Comparison with prior CT imaging demonstrates a significant progressive increase in the extent of calcification over several years. A bone scan shows intense radiotracer uptake within the calcified pleural mass and reveals the absence of the right leg, which was previously amputated due to a destructive primary osteosarcoma.
Key takeaways
Unilateral, calcified pleural disease in a young patient can mimic benign fibrothorax, chronic empyema, or trauma sequelae. However, progressive calcification with soft tissue or spinal canal invasion should raise immediate concern for malignant osteosarcoma metastasis. Osteosarcoma can occasionally present with pleural metastases as the sole site of thoracic recurrence without any parenchymal lung nodules, and bone scintigraphy is a highly useful adjunct to demonstrate intense mineral activity in these metastatic sites.
AI-assisted summary — may contain errors. Verify against the source video. Learn more
More from this webinar
- Mediastinal Teratoma Mimicking Pericardial CystNeoplastic
- Metastatic Pulmonary CalcificationMetabolic
- Sternal MRSA OsteomyelitisInfection
- Pseudoaneurysm and Transient Aortic Occlusion following Coarctation RepairVascular
- Multifocal Lung AdenocarcinomaNeoplastic
- Centrilobular Emphysema Mimicking LymphangioleiomyomatosisExposure
- Post-Pneumonectomy Bronchopleural Fistula and EmpyemaIatrogenic
- Anastomotic Bronchial Stenosis after Lung TransplantationIatrogenic
See all cases from March 24, 2014 →
Related Neoplastic cases
- Hodgkin Lymphoma Presenting as a Masslike Right Upper Lobe Consolidation
- Thymoma with Thoracic Splenosis Proven by Ferumoxytol MRI
- Mediastinal Metastasis from Testicular Teratoma Mimicking Bronchogenic Cyst
- Pulmonary Metastases from Angiosarcoma Presenting as Recurrent Hemorrhage
- Thymic Carcinoma Invading the Sternum and Anterior Chest Wall
- Diffuse Large B-Cell Lymphoma Presenting as a Primary Lung Mass