Discussion
Diagnosis With Brief Discussion
- Diagnosis
- Diffuse large B-cell lymphoma was confirmed by a mediastinoscopicbiopsy of the mass. At immunohistochemical staining, CD20 and LCA were positive.
- Radiologic Findings
- Chest CT scans show a homogenously enhancing mediastinal mass located between SVC and trachea. (precontrast: 44HU → postcontrast: 52HU). SVC is smoothly compressed by the mass.
- Brief Review
- Intrathoracic malignant lymphoma can present as a mass in anterior, middle, or rarely posterior mediastinum. It may appear in this area as a part of the manifestations of the disseminated process or as a primary mediastinal disease. Intrathoracic disease is less common for NHL than for Hodgkin lymphoma. Filly et al. showed that thoracic involvement occurs in 43% (58/136) of patients with NHL and 17.2% (23/136) of these patients had a single enlarged lymph node. CT examinations can generally reveal the location, size and properties of a lesion. CT findings of NHL have been characterized as homogenous, enhanced solid masses that rarely develop necrosis.
- References
- 1. Filly R, Blank N, Castellino RA. Radiographic distribution of intrathoracic disease in previously untreated patients with Hodgkin뭩 disease and Non-Hodgkin뭩 lymphoma. Radiology 1976; 120: 277?1.
2. Harnsberger RH, Bragg GD,Osborn GA et al. Non-Hodgkin lymphoma of the head and neck: CT evaluation of nodal and extranodal site. AJR Am. J. Roentgenol. 1987; 149: 785?1.
- Keywords
- Mediastinum, Lymphproliferative disorder, Lymphoma,