Rieber A, Brambs H J
Department of Diagnostic Radiology, University of Ulm, Germany.
Acta Radiol. 1995 Nov;36(6):659-61.
Cavernous hemangiomas of the adrenal gland are rare, and we here describe CT and MR features of an additional case including delayed contrast CT.
On CT, the tumor appeared as a well-delineated mass. Fatty areas and calcifications were seen. On delayed contrast CT, a progressive enhancement from the periphery to the center of the tumor was noticed, similar to the contrast enhancement of liver hemangiomas. In T1-weighted MR images, a hypointense tumor with a central stellate area of hypointensity was found. The tumor had a predominantly peripheral contrast enhancement.
CT and MR findings of adrenal hemangiomas are in some cases similar to those of liver hemangiomas. A tumor resection must be considered if the tumor changes in appearance or size.
肾上腺海绵状血管瘤较为罕见，我们在此描述另外一例肾上腺海绵状血管瘤的CT和MR特征，包括延迟增强CT表现。
CT上，肿瘤表现为边界清晰的肿块。可见脂肪区域和钙化。延迟增强CT显示肿瘤从周边向中心呈渐进性强化，类似于肝血管瘤的增强表现。在T1加权MR图像上，肿瘤呈低信号，中央有星芒状低信号区。肿瘤主要表现为周边强化。
肾上腺血管瘤的CT和MR表现有时与肝血管瘤相似。如果肿瘤外观或大小发生变化，则必须考虑进行肿瘤切除。
