This patient has a well circumscribed mass in the posterior mediastinum. The valve of the lateral view is well depicted in this case; on the frontal radiograph there is no way to localize the lesion. The differential diagnosis for a posterior mediastinal mass includes:
- lymphoma
- lung cancer
- aortic aneurysm or other vascular abnormality
- abscess
- hematoma
- neurogenic tumour (e.g. neurofibroma, schwannoma)
- multiple myeloma
- pheochromocytoma
- neurenteric cyst, thoracic duct cyst
- lateral meningocele
- Bochdalek hernia
- extramedullary hematopoiesis
This mass proved to be a neurofibroma.
Posterior Mediastinal Mass