Polypoid Renal Pelvic Lesions in Children

Wicklund, Roger; Tank, Edward S.

doi:10.1016/s0022-5347(17)56205-9

Cited by 19 publications

(12 citation statements)

References 16 publications

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“…Polypoid protrusions of the tumor into the pelvicaliceal system may occur, but parenchymal masses usually exist. Nine cases of botryoid Wilms tumor have been reported in the literature, including six cases associated with underlying parenchymal lesions [2][3][4][5][6][7]. Botryoid Wilms tumors without parenchymal lesions, similar to our patient, were detected in only three patients.…”

Section: Discussionmentioning

confidence: 48%

“…An asymptomatic mass is the most-common manifestation of typical Wilms tumor, with other manifestations occurring in less than 25% of cases. However, macroscopic hematuria has been frequently observed in botryoid Wilms tumor and usually assists with the diagnosis [2][3][4][5][6]. We present a patient with botryoid Wilms tumor whose initial laboratory findings were proteinuria and microhematuria.…”

Section: Introductionmentioning

confidence: 99%

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Botryoid Wilms tumor: case report and review of literature

Honda

Shima

Onoe

et al. 2000

Pediatric Nephrology

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A rare case of botryoid Wilms tumor is presented. The main clinical manifestations were persistent low-grade fever, malaise, and proteinuria associated with microhematuria. Ultrasonography revealed an echogenic mass in the right kidney, and a contrast-enhanced mass was found in the dilated collecting system by contrast-enhanced computed tomography. The surgically resected tumor was a polypoid, light-yellow, glistening mass that occupied a large part of the renal pelvis and originated from the pelvicaliceal wall. Part of the tumor extended to the proximal ureter, resulting in hydronephrosis in the involved kidney. No parenchymal lesion was observed. Microscopic examination revealed epithelial, stromal, and blastemal components, which indicated Wilms tumor. Infection had occurred in the hydronephrotic kidney, which presumably had caused the major presenting symptoms. The prognosis of our patient and previously reported cases of botryoid Wilms tumor was good compared with that of typical Wilms tumor, since the botryoid type can be detected at an early stage.

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Section: Discussionmentioning

confidence: 48%

Section: Introductionmentioning

confidence: 99%

Botryoid Wilms tumor: case report and review of literature

Honda

Shima

Onoe

et al. 2000

Pediatric Nephrology

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“…Hence the symptom of gross hematuria should raise the suspicion of tumor extending into the collecting system. Passage of tumor per urethra occurs due to dislodged fragment of necrotic tumor tissue [4]. As in our case, it should raise suspicion of tumor extension into the ureter or bladder.…”

Section: Discussionsupporting

confidence: 48%

Wilms’ Tumor With Transureteric Extension Into Bladder

Mariyappa

Khosa

Barker

et al. 2013

World J Nephrol Urol

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We report a case of 15 months old boy with Wilms' tumor with transureteric extension of the tumor into the bladder. His chief complaint was passage of brownish yellow pasty like material per urethrally. Examination revealed a mass in the right flank. CT scan showed a large mass arising from the right kidney and extending down the right dilated ureter into the bladder. A radical right nephroureterectomy was performed. Histopathology revealed triphasic nephroblastoma without invasion of ureteric wall or nodal metastasis. The tumor was classified as Cassady stage 1 Wilms' tumor and hence did not require adjuvant chemotherapy or radiotherapy. If clinically suspicious of ureteric extension of tumor and if imaging does not pick it or is unclear, cystoscopy and retrograde pyelogram are recommended to prevent transecting unsuspected tumor in ureter which will upstage the tumor.

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“…Intrapelvic Wilms' tumour is extremely rare, and the exact incidence is not known. On rare occasions it arises from the renal pelvis and produces a polypoid growth resembling botryoid sarcoma [22][23][24][25][26], and the diagnosis is almost always made after surgical intervention. To our knowledge, 28 cases of intrarenal pelvic Wilms' tumours, including our case, have been reported to date [22,23,25,27].…”

Section: Commentarymentioning

confidence: 99%

“…Our patient possessed two anomalies (left esotropia and hypoplasia of the right third rib), which have not been reported previously. The preoperative diagnosis of botryoid Wilms' tumour may be difficult, due to its rare incidence and unusual presentation, since the botryoid tumour is prone to extend into the ureter [25,26,32]. Hydronephrosis with or without infection is likely to be an important presenting manifestation of Wilms' tumour.…”

Section: Commentarymentioning

confidence: 99%