Schmit P, Lamy S, Dondlinger R F, Lentzen B, Möller T B
Service d'Urologie du Centre Hospitalier de Luxembourg.
Acta Urol Belg. 1991;59(3):37-45.
Renal AML are rare benign tumors of the kidneys consisting of fat tissue intermixed with thick-walled blood vessels and smooth muscle. Due to the easy access to modern imaging techniques more and more AML are detected incidentally during diagnostic evaluation of common urological disease before getting symptomatic (mostly flank pain, hematuria). The presence of a highly echodense renal mass on ultrasound and the detection of even small amounts of fat in CT usually allows to establish the diagnosis of AML. If these procedures give still equivocal results, angiography and MRI may become necessary. When report a case of a patient with AML where all the imaging techniques including magnetic resonance were nonconclusive. The correct diagnosis could only be established by histological examination after surgical resection. Indeed, the presence of a large hematoma had masked all the characteristic features of AML in this case.
肾血管平滑肌脂肪瘤是一种罕见的肾脏良性肿瘤，由脂肪组织与厚壁血管和平滑肌混合组成。由于现代成像技术易于获取，越来越多的血管平滑肌脂肪瘤在常见泌尿系统疾病的诊断评估过程中被偶然发现，此时尚无症状（主要是侧腹痛、血尿）。超声检查发现高回声肾肿块，CT检查即使检测到少量脂肪，通常也能确诊血管平滑肌脂肪瘤。如果这些检查结果仍不明确，则可能需要进行血管造影和磁共振成像检查。报告一例血管平滑肌脂肪瘤患者的病例，其中包括磁共振成像在内的所有成像技术均无定论。只有在手术切除后进行组织学检查才能确诊。事实上，在该病例中，一个大血肿掩盖了血管平滑肌脂肪瘤的所有特征。
