title: Computed tomography of multilocular cystic nephroma.
abstract: Three cases of multilocular cystic nephroma (MNC) tht were demonstrated by computed tomography (CT) are described. In two cases a correct preoperative diagnosis was made. In the third case, however, the mass did not fit exactly the histologic criteria for MCN. MCN appears on CT scans as a well-marginated, rounded, or polycyclic cortical mass that extends beyond the normal renal outline. This mass contains cysts that vary in size and number. It may be a cluster of a few large cysts with thick walls and septa, or it may be a denser mass composed of tiny cysts. This CT pattern is suggestive of MCN, but is not sufficient to obviate surgery. However, as part of a complete preoperative evaluation including arteriography, CT provides information that may be valuable in limiting the surgical procedure, perhaps avoiding unnecessary nephrectomy.
mesh_terms: D000792:Angiography; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging* / Q000209:etiology / Q000601:surgery; D008297:Male; D008875:Middle Aged; D007690:Polycystic Kidney Diseases / Q000000981:diagnostic imaging* / Q000209:etiology / Q000601:surgery; D011677:Punctures; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography; D014567:Urography