The presence of hydronephrosis is best indicated in what sonographic finding?

The presence of hydronephrosis is best indicated in what sonographic finding?

• A. Parapelvic cysts
• B. Peripelvic cysts
• C. Cystadenoma
• D. Simple cyst

Answer: (B)

Hydronephrosis is the dilation of the renal pelvis and calyces due to obstruction of urine flow, leading to fluid accumulation in the kidney. The sonographic finding that best indicates hydronephrosis is the presence of peripelvic cysts. Peripelvic cysts are typically located around the renal pelvis and can often be associated with hydronephrosis, as they may form due to the pressure effects from an obstructed collecting system. These cysts highlight the presence of fluid around the renal structures and can be visualized clearly via ultrasound, making them relevant in the context of identifying hydronephrosis. In contrast, parapelvic cysts are located at the renal hilum and are not directly related to the dilation of the renal pelvis caused by obstruction. While they are cystic structures, they do not provide the same indication that peripelvic cysts do regarding renal enlargement due to hydronephrosis. Cystadenomas and simple cysts are benign kidney lesions but do not indicate hydronephrosis, as they do not cause dilation of the collecting system. Thus, peripelvic cysts provide a more direct association with hydronephrosis on ultrasound imaging.

Hydronephrosis is the dilation of the renal pelvis and calyces due to obstruction of urine flow, leading to fluid accumulation in the kidney. The sonographic finding that best indicates hydronephrosis is the presence of peripelvic cysts.

Peripelvic cysts are typically located around the renal pelvis and can often be associated with hydronephrosis, as they may form due to the pressure effects from an obstructed collecting system. These cysts highlight the presence of fluid around the renal structures and can be visualized clearly via ultrasound, making them relevant in the context of identifying hydronephrosis.

In contrast, parapelvic cysts are located at the renal hilum and are not directly related to the dilation of the renal pelvis caused by obstruction. While they are cystic structures, they do not provide the same indication that peripelvic cysts do regarding renal enlargement due to hydronephrosis. Cystadenomas and simple cysts are benign kidney lesions but do not indicate hydronephrosis, as they do not cause dilation of the collecting system. Thus, peripelvic cysts provide a more direct association with hydronephrosis on ultrasound imaging.