Boccon Gibod L, Correas G, Godefroy D, Ducellier R, Teyssier P
Nouv Presse Med. 1981 Oct 31;10(39):3231-2.
The aetiological diagnosis of lacunae detected by urography is uncertain in 10 to 20% of cases. Uric acid calculi larger than 2 cm in diameter can be demonstrated by ultrasonography, where they show as echogenic areas with conical shadows. Computerized tomography has wider possibilities: uric acid calculi are extremely dense and clearly visible, clots are not enhanced by contrast media, and the enhancement of epithelial tumours is of the avascular type.
通过尿路造影检测到的腔隙性病变，其病因诊断在10%至20%的病例中并不明确。直径大于2厘米的尿酸结石可通过超声检查显示，表现为伴有锥形阴影的强回声区。计算机断层扫描的诊断范围更广：尿酸结石密度极高且清晰可见，血凝块不会因造影剂而增强，上皮肿瘤的增强表现为无血管型。
