Tanaka D, Oyama T, Niwatsukino H, Nakajo M
Department of Radiology, Faculty of Medicine, Kagoshima University, Japan.
Radiat Med. 1998 May-Jun;16(3):213-6.
A 50-year-old man had a giant myelolipoma of the right adrenal gland, 30 x 25 x 23 cm in size, and 3,500 g in weight. The mass was hyperechoic with low echoic areas in part on US, heterogeneous with fat density tissues and tissues with density higher than fat on enhanced CT, heterogeneous with fat intensity areas on both T1- and T2-weighted MR images and with other areas of low intensity on T1-weighted images and high intensity on T2-weighted images due to myeloid tissues, and relatively hypervascular on subphrenic arteriography. This tumor was unique because, except for palpation of the mass on physical examinations, there were no symptoms such as abdominal pain due to hemorrhage, necrosis, or pressure on the surrounding structures despite its huge size.
一名50岁男性患有右侧肾上腺巨大髓脂肪瘤，大小为30×25×23厘米，重量为3500克。该肿块在超声检查中表现为高回声，部分区域有低回声；增强CT显示为脂肪密度组织与密度高于脂肪的组织不均匀混合；T1加权和T2加权磁共振图像上表现为脂肪强度区域与其他区域不均匀混合，由于髓样组织，T1加权图像上其他区域为低强度，T2加权图像上为高强度；膈下动脉造影显示相对血运丰富。该肿瘤很独特，因为除了体格检查时可触及肿块外，尽管其体积巨大，但没有因出血、坏死或对周围结构的压迫而导致的腹痛等症状。
