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目的 探讨肾上腺畸胎瘤影像表现 ,提高对本病的认识。方法 报告 4例经手术病理证实的肾上腺畸胎瘤的影像所见 ,IVP检查 2例 ,B超 3例、CT检查 4例 ,MRI和肾动脉造影各 1例。结果 4例均位于右侧肾上腺 ,IVP示肾上腺区钙化灶 ,CT表现为右肾上腺显示不清。肿瘤分别表现为以水样密度、脂肪密度或实性密度为主的混合密度块 ,增强扫描肿瘤实质部分、包膜及分隔有强化 ,MRIT1、T2 WI均显示肿瘤为不均质性高信号。B超显示肾上腺区不均质强光团和多种成分回声。结论 CT、MRI对肾上腺畸胎瘤诊断和鉴别诊断优于IVP和B超。
Objective To investigate the imaging features of adrenal teratoma and to improve the understanding of this disease. Methods Four cases of adrenal teratoma confirmed by surgery and pathology were reported. There were 2 cases of IVP, 3 cases of B ultrasound, 4 cases of CT, 1 case of MRI and renal artery angiography. Results 4 cases were located in the right adrenal gland, IVP showed adrenal calcification, CT showed right adrenal showed unclear. The tumors showed mixed densities mainly in water-density, fat-density or solid-density, respectively. The enhancement of the real part of the tumor, the enhancement of the capsule and the separation, and MRIT1 and T2 WI all showed high heterogeneity of the tumor. B-ultrasound shows heterogeneous glaucoma groups and multiple components of the adrenal echo. Conclusion CT and MRI are superior to IVP and B ultrasound in the diagnosis and differential diagnosis of adrenal teratoma.