Primary malignant lymphoma in the posterior mediastinum.

摘要

We present a case of primary malignant lymphoma arising from the posterior mediastinum. A 63-year-old woman was admitted to our hospital for further examination of her chest radiographic findings. She was asymptomatic. Chest computed tomography (CT) and magnetic resonance imaging (MRI) showed a posterior mediastinal mass in the right thoracic paravertebral region. A percutaneous needle biopsy was performed under CT. The histological findings with immunochemical staining revealed a B cell type of diffuse malignant lymphoma. (67)Ga scintigraphy revealed accumulation in this area, suggesting the posterior mediastinum as the origin of the disease. Reports of primary malignant lymphoma in the posterior mediastinum are extremely rare. The radiographic characteristics are discussed.