Microradiographic demonstration of pyelolymphatic backflow in the porcine kidney

Jt, Cuttino; Rl, Clark; Fa, Fried; Ps, Stevens

doi:10.2214/ajr.131.3.501

Cited by 23 publications

(16 citation statements)

References 8 publications

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“…There are a few cases and experimental animal studies presented in the literature that were conducted with the help of conventional radiographic techniques [1,3,5,6]. However, this computed tomography case revealed increased density and streaks, which started at the renal sinus and continued caudally with a lace-like pattern surrounding the proximal ureter within the retroperitoneal adipose tissue.…”

Section: Discussionmentioning

confidence: 97%

“…Once this happens, lymphatics in the periarcuate plexus at the corticomedullary junction are filled first. Subsequently interlobular, interlobar and perihilar lymphatics are visualized [3]. …”

Section: Discussionmentioning

confidence: 99%

“…Intrarenal cortical and corticomedullary microlymphatics, as well as veins, become filled following forniceal rupture and interstitial extravasation. These anatomically oriented studies suggest that renal lymphatics may function as an alternative drainage pathway of an acutely obstructed kidney [3]. We report a rare case of a pyelolymphatic reflux demonstrated by a CT examination.…”

Section: Introductionmentioning

confidence: 97%

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Pyelolymphatic backflow demonstrated by abdominal CT: A case report

et al. 2014

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Summary Background Pyelolymphatic backflow phenomenon, which is a subtype of pyelorenal backflow, is a rare condition that occurs during the acute phase of urinary obstruction. Pyelorenal backflow has already been described in humans with retrograde pyelography. Our report presents a rare case of pyelolyphatic backflow demonstrated by a computed tomography. Case Report A 67-year-old man with a history of bladder carcinoma was admitted to the emergency department due to right-sided flank pain and hematuria. Hematuria resolved after insertion of a 3-way urinary catheter, but flank pain persisted. As a result, an abdominopelvic CT was performed. CT revealed numerous tiny, serpiginous tubular structures connected with each other and filled with urine. They began intrarenally and extended caudally surrounding the ureter in the retroperitoneum. Subsequently, the patient underwent an ultrasound-guided nephrostomy to decompress the collecting system of the right kidney. Antegrade pyelography revealed minimal hydroneprosis. However, no leakage from the ureter to the retroperitoneum was observed, proving that the changes demonstrated by a CT were due to pyelolymphatic reflux caused by increased pressure in the collecting tubules filling the lymphatics with opaque urine. Conclusions This report presents a very rare case of pyelolymphatic reflux demonstrated by a CT. We present this case report as a reminder that although rare, pyelolymphatic reflux can occur as a result of obstruction without manifestations of hydronephrosis and it can be confused with leakage from the ureter.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

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Pyelolymphatic backflow demonstrated by abdominal CT: A case report

et al. 2014

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“…The two kidneys with intrarenal backflow but with-refluxed material may pass up the collecting ducts -micout the marbled appearance were from the animal which turating cystograms in pigs [4,5], retrograde pyelography died 45 min before retrograde pyelography. Presumably in excised pig kidneys [14] and autopsy kidneys from the animal had been dead long enough that necrosis due children [15] -it is not clear how such material gains and in man [8].…”

Section: Discussionmentioning

confidence: 99%

Pyelorenal Backflow during Retrograde Pyelography in Normal and Ischemic Porcine Kidneys

Thomsen

Larsen

Talner³

1982

Eur Urol

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“…Acute obstruction causes dilation and reflux into intrarenal lymphatics, providing an alternate pathway of drainage of an acutely obstructed kidney (14,15). In chronic obstruction, Tamm-Horsfall protein leaks from tubules into lymphatics and can be found in draining lymph nodes (16).…”

mentioning

confidence: 99%

Emphatically Lymphatic

Colvin¹

2004

Journal of the American Society of Nephrology

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Microradiographic demonstration of pyelolymphatic backflow in the porcine kidney

Cited by 23 publications

References 8 publications

Pyelolymphatic backflow demonstrated by abdominal CT: A case report

Pyelolymphatic backflow demonstrated by abdominal CT: A case report

Pyelorenal Backflow during Retrograde Pyelography in Normal and Ischemic Porcine Kidneys

Emphatically Lymphatic

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