Grant E G, Grønvall S, Sarosi T E, Borts F T, Holm H H, Schellinger D
Radiology. 1982 Feb;142(2):447-51. doi: 10.1148/radiology.142.2.7054835.
Four patients with hemangiopericytoma were examined with gray-scale sonography. Three of these patients were also evaluated by computed tomography (CT). The sonographic findings included well-defined, predominately cystic masses in two patients, a mixed solid and cystic mass in one, and a solid mass with shadowing in another. One hemangiopericytoma changed in sonographic appearance from cystic to solid following radiation. CT identified well-circumscribed masses in all three cases, but added little beyond what was seen on plain radiographs. Sonography may define the limits of a hemangiopericytoma, give information about the internal structure, and offer a way of following response to therapy. However, the sonographic features are varied and the often cystic nature of these tumors may be misleading.
对4例血管外皮细胞瘤患者进行了灰阶超声检查。其中3例患者还接受了计算机断层扫描（CT）评估。超声检查结果包括：2例患者为边界清晰、以囊性为主的肿块，1例为实性和囊性混合肿块，另1例为伴有声影的实性肿块。1例血管外皮细胞瘤在放疗后超声表现从囊性变为实性。CT在所有3例中均显示边界清晰的肿块，但除了平片所见外，提供的信息不多。超声检查可以确定血管外皮细胞瘤的边界，提供有关内部结构的信息，并提供一种跟踪治疗反应的方法。然而，超声特征各不相同，这些肿瘤常呈囊性的性质可能会产生误导。
