| pyelonephritic kidney | <nephrology> A kidney deformed by multiple scars as a result of chronic or recurrent renal infection. (05 Mar 2000) |
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| sigmoid kidney | Upper pole of one kidney fused with the lower pole of the other. (05 Mar 2000) |
| straight venules of kidney | Venules that drain the medullary pyramids of the kidney; they open into arcuate veins. Synonym: venulae rectae renis. (05 Mar 2000) |
| nonrotation of kidney | A developmental anomaly in which the hilum of the kidney retains its original position, facing ventrally. (05 Mar 2000) |
| superior pole of kidney | The superior end of the kidney. Synonym: extremitas superior renis. (05 Mar 2000) |
| superior segmental artery of kidney | Origin, anterior branch of renal. See: segmental arteries of kidney. Synonym: arteria segmenti superioris renis, artery of superior segment of kidney. (05 Mar 2000) |
| supernumerary kidney | A kidney, in addition to the two usually present, developed from the splitting of the nephrogenic blastema or from a separate metanephric blastema, into which a partial or complete reduplication of the ureteral stalk enters to form a separate, capsulated kidney; in some cases, the separation of the reduplicated organ is incomplete. (05 Mar 2000) |
| disk kidney | A disk-shaped organ produced by fusion of both poles of the contralateral kidney anlagen. Synonym: disk kidney. (05 Mar 2000) |
| duplex kidney | A kidney in which two pelviocaliceal systems are present. (05 Mar 2000) |
| inferior pole of kidney | The inferior end of the kidney. Synonym: extremitas inferior renis. (05 Mar 2000) |
| inferior segmental artery of kidney | Origin, anterior branch of renal. See: segmental arteries of kidney. Synonym: arteria segmenti inferioris renis, artery of inferior segment of kidney. (05 Mar 2000) |
| inferior segment of kidney | Which typically consists of approximately the inferior third of the kidney viewed either anteriorly or posteriorly. Synonym: segmentum inferius. (05 Mar 2000) |
| inguinal ligament of the kidney | The segment of the mesonephros extending to the inguinal region. (05 Mar 2000) |
| interlobar arteries of kidney | The branches of the segmental arteries of the kidney; they run between the renal lobes and give rise to the arcuate arteries. Synonym: arteriae interlobares renis. (05 Mar 2000) |
| interlobar veins of kidney | The veins in the kidney that parallel the interlobar arteries, receiving blood from arcuate veins, and terminate in the renal vein. Synonym: venae interlobares renis. (05 Mar 2000) |