Talner L B, Webb J A, Dail D H
Department of Radiology, University of California, San Diego, La Jolla 92093.
AJR Am J Roentgenol. 1991 May;156(5):985-8. doi: 10.2214/ajr.156.5.2017965.
Lacunae, small spaces in the renal sinus that communicate with the caliceal fornices, have been mentioned rarely in the radiologic literature. These lesions have been reported to opacify during excretory urography in patients with current or previous urinary obstruction. Lacunae have been presumed to form in response to urine extravasation through the fornices, but there has never been gross anatomic or histologic proof of their existence. In two patients with obstructive uropathy, urographic-pathologic correlation confirmed the existence and nature of lacunae. On excretory urography, the appearance is likely to be confused with papillary necrosis.
肾窦内与肾盏穹窿相通的小间隙——陷窝，在放射学文献中鲜有提及。据报道，这些病变在目前或既往有尿路梗阻的患者排泄性尿路造影时会显影。陷窝被推测是由于尿液通过肾盏穹窿外渗而形成，但从未有过关于其存在的大体解剖学或组织学证据。在两名梗阻性尿路病患者中，尿路造影与病理学的相关性证实了陷窝的存在及性质。在排泄性尿路造影上，其表现可能会与乳头坏死相混淆。
