Metanephric adenoma of the kidney: clinical and radiological study of nine cases
Metanephric adenoma of the kidney: clinical and radiological study of nine cases
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DOI：
10.1111/j.1464-410x.2009.08357.x
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发表时间：
2009-06-01
影响因子：
4.5
通讯作者：
Russo, Paul
中科院分区：
文献类型：
--
作者：
Bastide, Cyrille;Rambeaud, Jean-Jacques;Russo, Paul
分析9例后肾腺瘤（MA，一种罕见的良性肾脏肿瘤）的临床和放射学特征，并回顾既往报道。根治性肾切除术4例，肾部分切除术5例。术前影像学检查由一名高级放射科医生进行审查。分别对7例、8例和4例患者进行了肾脏彩色多普勒超声（US）检查、腹部计算机断层扫描和腹部磁共振成像检查，患者的平均年龄为46.8（19-79）岁。偶然发现了6个肿瘤。3例患者有症状（2例血尿，1例红细胞增多症）。彩色多普勒超声显示肿瘤内无血管血流。有周边和/或中央钙化的肿瘤6。所有的肿瘤都是很好的限制与最小的增强后注射非离子静脉造影剂或gadolinium.Renal MA是一种良性肿瘤，主要发生在年轻和中年妇女。红细胞增多症约占10%。一般来说，MA是实性的，边界清楚，少血供，常伴有钙化。根据临床和影像学特征的结合，可能会怀疑MA的诊断并建议进行术前诊断活检、肾部分切除术或主动监测。
To analyse the clinical and radiological features of metanephric adenoma (MA, a rare benign renal tumour) in nine patients, and to review previous reports.From 1992 to 2007, we identified nine patients (eight women and one man) with MA at our institution. Four patients had a radical nephrectomy and five a partial nephrectomy. Preoperative imaging was reviewed by a senior radiologist. Renal colour Doppler ultrasonography (US), abdominal computed tomography and abdominal magnetic resonance imaging were used in seven, eight and four patients, respectively.The mean (range) age of the patients was 46.8 (19-79) years. Six tumours were discovered incidentally. Three patients were symptomatic (two with haematuria and one with polycythaemia). There was no vascular flow on colour Doppler US within the tumours. There were peripheral and/or central calcifications in six of the tumours. All the tumours were well-circumscribed with minimal enhancement after injection with non-ionic intravenous contrast or gadolinium.Renal MA is a benign tumour occurring mainly in young and middle-aged women. Polycythaemia is associated in approximate to 10%. Generally, MA is solid, well-circumscribed and hypovascular, often with calcifications. Based on a combination of clinical and imaging features, it might be possible to suspect the diagnosis of MA and propose a preoperative diagnostic biopsy, a partial nephrectomy or active surveillance.