Department of Medical Imaging, The Ottawa Hospital, The University of Ottawa, Ottawa, Canada.
Department of Radiology, The Hospital of the University of Pennsylvania, Philadelphia, USA.
Abdom Radiol (NY). 2020 Oct;45(10):3172-3183. doi: 10.1007/s00261-019-02196-9.
This article reviews the MRI appearance of cystic retroperitoneal (RP) masses.
Lymphangiomas are the most common RP cystic masses and typically appear simple; microscopic fat is a specific but insensitive finding. Location, internal complexity, and enhancement pattern suggest alternative diagnoses which range from normal anatomic variants to congenital abnormalities and importantly include benign, neurogenic, and malignant neoplasms. An approach to the MR imaging of cystic RP masses is presented.
本文回顾了囊性腹膜后（RP）肿块的 MRI 表现。
淋巴管瘤是最常见的 RP 囊性肿块，通常表现为单纯性；镜下脂肪是一种特异性但不敏感的发现。位置、内部复杂性和增强模式提示了其他诊断，范围从正常解剖变异到先天性异常，重要的是包括良性、神经源性和恶性肿瘤。提出了一种囊性 RP 肿块的 MRI 成像方法。
