Abnormal enlargement of a kidney, which may be caused by blockage of the ureter (such as by a kidney stone) or chronic kidney disease that prevents urine from draining into the bladder.

English dictionary of cancer terms . 2015.

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  • Hydronephrosis — Hy dro*ne*phro sis, n. [NL., Gr. y dwr water + ? a kidney.] (Med.) An accumulation of urine in the pelvis of the kidney, occasioned by obstruction in the urinary passages. [1913 Webster] …   The Collaborative International Dictionary of English

  • Hydronephrosis — Infobox Disease Name = PAGENAME Caption = DiseasesDB = 6145 ICD10 = ICD10|N|13|0|n|10 ICD10|N|13|3|n|10 ICD9 = ICD9|591 ICDO = OMIM = MedlinePlus = eMedicineSubj = eMedicineTopic = MeshID = D006869 Hydronephrosis is distention and dilation of the …   Wikipedia

  • Hydronephrosis — Distention of the kidney with urine. Due to obstruction of urine outflow (for example, by a stone blocking the ureter, the tube going * * * Dilation of the pelvis and calices of one or both kidneys. This may result from obstruction to the flow of …   Medical dictionary

  • hydronephrosis — n. distension and dilatation of the pelvis of the kidney. This is due to an obstruction to the free flow of urine from the kidney. An obstruction at or below the neck of the bladder will result in hydronephrosis of both kidneys. The term primary… …   The new mediacal dictionary

  • hydronephrosis of pregnancy — hydronephrosis due to pressure against the ureter by the pregnant uterus …   Medical dictionary

  • hydronephrosis — /huy droh neuh froh sis/, n. Pathol. dilation of the branches and pelvic cavity of the kidney, caused by an accumulation of urine resulting from obstruction of normal outflow. [1840 50; HYDRO 1 + NEPHROSIS] * * * …   Universalium

  • hydronephrosis — noun distension of the kidneys due to obstruction in the flow of urine See Also: hydroureteronephrosis …   Wiktionary

  • hydronephrosis — hy·dro·ne·phro·sis …   English syllables

  • hydronephrosis — noun accumulation of urine in the kidney because of an obstruction in the ureter • Hypernyms: ↑pathology …   Useful english dictionary

  • infected hydronephrosis — hydronephrosis that has become complicated by bacterial infection; see also pyonephrosis …   Medical dictionary

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