Ogita M, Oyama T, Onohara S, Nakabeppu Y, Mukai H, Abeyama K, Shinohara S
Department of Radiology, Faculty of Medicine, Kagoshima University.
Nihon Igaku Hoshasen Gakkai Zasshi. 1991 Dec 25;51(12):1431-41.
Adrenal imaging was performed using magnetic resonance (MR) was in 100 patients who had no clinical or biochemical evidence of adrenal abnormality and in 19 patients with 24 adrenal lesions (adenoma in 5, hyperplasia in 2, metastasis in 5, (lung cancer in 1, hepatoma in 4) adrenal cancer in 1, pheochromocytoma in 3, neuroblastoma in 3). Normal adrenal glands showed intermediate intensity between muscle and liver, and were detected in over 90% of cases on T1-weighted images (T1-weighted SE, inversion recovery). Adenomas and hyperplasias had the same intensity as normal glands. Medullary masses showed extreme hyperintensity on T2-weighted images and could be differentiated from cortical masses. Neuroblastomas were detected as hyperintense tumors with intratumoral hemorrhage and necrosis on T2-weighted MR images. Metastatic adrenal tumors from lung cancer were hyperintense on T2-weighted images, while metastasis from hepatoma showed low intensity on the same pulse sequence. In diagnosing adrenal metastasis, we must compare and contrast the tumor intensity and structure with those of the primary lesions. MR is considered a useful modality in characterizing adrenal tissue.
对100例无肾上腺异常临床或生化证据的患者以及19例有24个肾上腺病变（5例腺瘤、2例增生、5例转移瘤（1例肺癌转移、4例肝癌转移）、1例肾上腺癌、3例嗜铬细胞瘤、3例神经母细胞瘤）的患者进行了肾上腺磁共振成像（MR）检查。正常肾上腺在肌肉和肝脏之间呈中等强度，在T1加权图像（T1加权自旋回波、反转恢复序列）上90%以上的病例可被检测到。腺瘤和增生与正常肾上腺强度相同。髓质肿块在T2加权图像上呈极高信号，可与皮质肿块区分。神经母细胞瘤在T2加权MR图像上表现为有瘤内出血和坏死的高信号肿瘤。肺癌转移的肾上腺肿瘤在T2加权图像上呈高信号，而肝癌转移在相同脉冲序列上呈低信号。在诊断肾上腺转移瘤时，我们必须将肿瘤的强度和结构与原发病变进行比较和对比。MR被认为是一种用于肾上腺组织特征描述的有用检查方法。
