Comerci S C, Levin T L, Ruzal-Shapiro C, Berdon W E, Beckwith J B, Hibshoosh H, Hurlet-Jensen A, Sitarz A L
Department of Radiology, Columbia Presbyterian Medical Center, Babies' and Children's Hospital of New York, New York, NY 10032, USA.
Radiology. 1996 Jan;198(1):265-8. doi: 10.1148/radiology.198.1.8539391.
To correlate pathologic, computed tomographic (CT), and ultrasound (US) characteristics of nephrogenic adenofibromas and embryonal adenomas (uncommon pediatric renal tumors) in children.
Medical records and imaging and pathologic findings were reviewed in three children (aged 6 1/2, 7, and 11 years) with adenomatous renal tumors and polycythemia. Specimens were reviewed at the National Wilms Tumor Study Pathology Center (Loma Linda, Calif).
All tumors were smaller than 3 cm in greatest dimension. They were hyperechoic on US scans and had high attenuation on unenhanced CT scans. Two patients underwent nephrectomy for initial diagnosis of Wilms tumor. The third underwent local excision. At pathologic examination, embryonal-appearing adenomatous epithelial cells were found to form tubules and papillae with abundant psammomatous calcifications. Two masses were classified as embryonal adenomas and one as nephrogenic adenofibroma.
Increased attenuation on CT scans and increased echogenicity on US scans of renal adenomatous tumors are distinctive findings that may reflect the presence of tubulopapillary structures and psammomatous calcifications.
探讨儿童肾源性腺纤维瘤和胚胎性腺瘤（罕见的儿童肾肿瘤）的病理、计算机断层扫描（CT）及超声（US）特征之间的相关性。
回顾了3例患有腺瘤性肾肿瘤和红细胞增多症的儿童（年龄分别为6岁半、7岁和11岁）的病历、影像学及病理检查结果。标本由国家肾母细胞瘤研究病理中心（加利福尼亚州洛马林达）进行评估。
所有肿瘤最大径均小于3 cm。超声扫描显示为高回声，未增强CT扫描显示为高衰减。2例患者最初诊断为肾母细胞瘤而行肾切除术。第3例患者行局部切除术。病理检查发现，胚胎样腺瘤性上皮细胞形成小管和乳头，并伴有大量砂粒体样钙化。2个肿块被分类为胚胎性腺瘤，1个为肾源性腺纤维瘤。
肾腺瘤性肿瘤CT扫描上的衰减增加及超声扫描上的回声增强是独特的表现，可能反映了小管乳头结构和砂粒体样钙化的存在。
