Tamburrini O, Della Sala M, Mancuso P P, Locco C, Bria M, Brancati C
U.O. e Cattedra di Radiologia, Policlinico Materdomini, Facoltà di Medicina e Chirurgia, Catanzaro.
Radiol Med. 1992 Nov;84(5):582-6.
Extramedullary hematopoiesis is a rare finding. It represents a compensatory mechanism capable of assuring and keeping sufficient erythrogenesis. The distribution of the main locations of extramedullary hematopoiesis was observed in different organs and apparatuses. According to their experience, the authors investigated the potentials and limitations of conventional radiology, of CT and MR Imaging, to diagnose intrathoracic extramedullary hematopoiesis in the posterior mediastinum. While stressing the value of clinical and anamnestic data and of conventional radiology, the authors emphasize the leading role of CT and MR imaging. As a matter of fact, the latter is the method of choice, thanks to higher contrast resolution and to its multiplanar and multiparameter capabilities, in the study of space-occupying lesions in the costo-vertebral region. On the other hand, MR Imaging fails to detect calcic areas in paravertebral masses; moreover, the exhaustive and morphostructural analysis of bone segments, ribs and vertebrae, is allowed only by CT.
髓外造血是一种罕见的现象。它代表一种能够确保并维持足够红细胞生成的代偿机制。观察了髓外造血主要部位在不同器官和组织中的分布情况。根据自身经验，作者研究了传统放射学、CT和磁共振成像（MR成像）在诊断后纵隔胸内髓外造血方面的潜力和局限性。在强调临床和既往史数据以及传统放射学价值的同时，作者强调了CT和MR成像的主导作用。事实上，由于具有更高的对比度分辨率及其多平面和多参数功能，后者是研究肋椎区域占位性病变的首选方法。另一方面，MR成像无法检测椎旁肿块中的钙化区域；此外，只有CT能够对骨段、肋骨和椎骨进行详尽的形态结构分析。
