Ultrasonographic manifestations of renal oncocytoma

VernacularTitle:肾嗜酸细胞瘤超声表现
Author: Mengsu XIAO ; Sheng CAI ; Jianchu LI ; Qingli ZHU ; Qing DAI ; Yuxin JIANG
Publication Type:Journal Article
Keywords: Ultrasonography; Kidney neoplasms
From: Chinese Journal of Medical Imaging Technology 2009;25(12):2268-2270
CountryChina
Language:Chinese
Abstract: Objective To investigate the ultrasonographic manifestation of renal oncocytoma. Methods The sonographic appearances of 12 patients with pathologically confirmed RO were retrospectively reviewed, and the size, margin, configuration, echogenicity and blood flow distribution of the lesions were analyzed. Results All of the 12 RO were detected and located correctly, among which 3 cases were misdiagnosed as renal cell carcinoma and 9 cases were not qualitatively diagnosed with ultrasound. The lesions manifested as central stellate scar in 8.33%, homogeneous enchogenicity in 66.67%, well-defined in 75.00%, regular-shape in 91.67% and isoechoic in 58.33%. Among these lesions, 6 (50.00%) were hypervascular with spoke-wheel distribution, 5 (41.67%) were hypovascular, and 1 (8.33%) was avascular, while peripheral blood flow were seen in 7 lesions (66.67%). Conclusion The diagnostic ability of ultrasound for RO is limited, but a homogeneous, well-defined solid lesion with spoke-wheel distribution of blood flow, especially with a stellate scar may suggest RO.