本文报告了17例经二维及双功能多普勒超声诊断的腹膜后肿物，其中良性肿物3例(17.6%)，恶性肿瘤13例(76.5%)，有恶性倾向的肿瘤1例。

This article reports 17 cases with retroperitoneal masses diagnosed by 2-d imaging and duplex Doppler, including 3 benign masses (17.6%), 13 malignant tumor, (76.5%) and one malignant potential.

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结果腹膜后单发巨大不均质软组织肿物3例，均伴有大块状钙化，1例瘤内有脂肪密度。

Results Isolated large heterogenous soft-tissue mass was found in 3 cases with massive calcifications (3 cases) and fat-dense areas (1 case).

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