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UPJ obstruction.

Park MHP - MedPix (2006)

View Article: MedPix Image - MedPix Case

Affiliation: Madigan Army Medical Center

ABSTRACT

Diagnosis: UPJ obstruction.

History: Patient is a 36 year old male with a history of multiple obstructing renal stones who has undergone mulitiple lithotripsy procedures. He has also undergone two endoscopic pyloplasties and stent placements. He recently presented with pain and stones on the affected side.

Findings: Multiple fluoroscopic images during the placement of a percutaneous nephrostomy tube and performance of a Whitaker Test. The collecting system is dilated with no contrast seen to extend beyond the UPJ. The bladder is emptied with a Foley Catheter. Pressure measurements are discussed below.

Ddx: The question asked in this case of known ureteropelvic juction obstruction is whether or not he is completely obstructed. This question was answered utilizing the Whitaker Test. The initial measurement of pressure differential between the renal pelvis and bladder was approximatley 17 cmH2O. After infusion of contast at 10cc/min the measurement rose to 18 and at 20cc/min the pressure was 21 cmH2O. All of these signify obstruction according to the Whitaker test.

Dxhow: Whitaker Test

Exam: Normal laboratory values and physical exam.

No MeSH data available.


Image demonstrates a Foley catheter in the urinary bladder, which is empty.  This is necessary so the distal pressure measurement can be assumed to be zero.
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MPX2343_synpic31266: Image demonstrates a Foley catheter in the urinary bladder, which is empty. This is necessary so the distal pressure measurement can be assumed to be zero.


UPJ obstruction.

Park MHP - MedPix (2006)

Image demonstrates a Foley catheter in the urinary bladder, which is empty.  This is necessary so the distal pressure measurement can be assumed to be zero.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=MPX2343&req=5

MPX2343_synpic31266: Image demonstrates a Foley catheter in the urinary bladder, which is empty. This is necessary so the distal pressure measurement can be assumed to be zero.

View Article: MedPix Image - MedPix Case

Affiliation: Madigan Army Medical Center

ABSTRACT

Diagnosis: UPJ obstruction.

History: Patient is a 36 year old male with a history of multiple obstructing renal stones who has undergone mulitiple lithotripsy procedures. He has also undergone two endoscopic pyloplasties and stent placements. He recently presented with pain and stones on the affected side.

Findings: Multiple fluoroscopic images during the placement of a percutaneous nephrostomy tube and performance of a Whitaker Test. The collecting system is dilated with no contrast seen to extend beyond the UPJ. The bladder is emptied with a Foley Catheter. Pressure measurements are discussed below.

Ddx: The question asked in this case of known ureteropelvic juction obstruction is whether or not he is completely obstructed. This question was answered utilizing the Whitaker Test. The initial measurement of pressure differential between the renal pelvis and bladder was approximatley 17 cmH2O. After infusion of contast at 10cc/min the measurement rose to 18 and at 20cc/min the pressure was 21 cmH2O. All of these signify obstruction according to the Whitaker test.

Dxhow: Whitaker Test

Exam: Normal laboratory values and physical exam.

No MeSH data available.