Which condition is the dilation of one or both kidneys?

Which condition is the dilation of one or both kidneys?

• A. Nephropyrosis
• B. Nephritis
• C. Hydronephrosis
• D. Nephrectasis

Answer: (C)

Hydronephrosis is the dilation of the kidney’s collecting system, usually the renal pelvis and calyces, caused by impaired urine drainage from the kidney. When urine backs up due to an obstruction or downstream blockage, the kidney becomes distended, and this dilation can affect one kidney or both depending on where the problem lies. This is different from inflammation or infection of the kidney, such as nephritis or nephropyrosis, which involve inflammatory or purulent processes rather than just fluid expansion of the collecting system. Over time, persistent dilation can damage kidney tissue, so the goal is to relieve the obstruction and decompress the kidney, often by addressing the underlying cause or using interventions to restore urine flow.

Hydronephrosis is the dilation of the kidney’s collecting system, usually the renal pelvis and calyces, caused by impaired urine drainage from the kidney. When urine backs up due to an obstruction or downstream blockage, the kidney becomes distended, and this dilation can affect one kidney or both depending on where the problem lies. This is different from inflammation or infection of the kidney, such as nephritis or nephropyrosis, which involve inflammatory or purulent processes rather than just fluid expansion of the collecting system. Over time, persistent dilation can damage kidney tissue, so the goal is to relieve the obstruction and decompress the kidney, often by addressing the underlying cause or using interventions to restore urine flow.