Ureterocele urothelial carcinoma: managing a rare presentation

Astigueta, Juan Carlos; Abad-Licham, Milagros; Silva, Eloy; Alvarez, Víctor; Piccone, Francis; Cruz, Enrique Llerena Santa; Redorta, Joan Palou

doi:10.3332/ecancer.2016.621

Cited by 5 publications

(18 citation statements)

References 15 publications

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“…Regarding imaging findings, these 15 reports detail similar findings as described above. Although cystoscopy successfully demonstrated the presence of tumors encroaching on the outer surface of the ureterocele in 3 out of 15 of the cases ( 5 , 10 ), cystoscopy in our case did not reveal any suspicious features arising from the left ureterocele as the tumor was enclosed within the inner surface of the ureterocele. Hence there was a need for transurethral unroofing of the ureterocele for visual confirmation and resection for clearance and histological diagnosis of the tumor.…”

Section: Discussioncontrasting

confidence: 50%

“…The sonographic finding of a well-defined cystic intra-vesical mass within the posterior bladder wall is suggestive of a ureterocele and a classic description is that of a cyst within a cyst. Tumors arising from the ureterocele may bear features of irregular echogenicity without acoustic shadowing ( 5 ). However, these may be missed if the patient's bladder is empty or fully distended, or if the ureteroceles were small.…”

Section: Discussionmentioning

confidence: 99%

“…The classic finding on IVP is a round radiopacity in the bladder surrounded by a radiolucent rim. The characteristic appearance of a ureterocele on CT urography is an intra-vesical defect that is radiolucent and globular in nature manifesting as the “cobra-head sign” ( 5 ). The CT urogram is useful in visualizing enhancing masses such as tumors.…”

Section: Discussionmentioning

confidence: 99%

“…There are fifteen reports of tumors arising from true ureteroceles [ 5 , 7 – 12 ], however this is the first report of transitional cell carcinomas (TCC) in a patient with bilateral ureteroceles. In a true ureterocele TCC represent the majority of tumors that may arise [ 5 , 7 , 8 , 10 – 12 ], although one case of squamous cell carcinomas has been reported ( 9 ). This is because the urothelial tissue preserves its capacity to undergone malignant transformation ( 13 ).…”

Section: Discussionmentioning

confidence: 99%

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A solitary urothelial tumor arising from one of bilateral ureteroceles

Yxt

Gll

2017

Int. braz j urol.

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Section: Discussioncontrasting

confidence: 50%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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A solitary urothelial tumor arising from one of bilateral ureteroceles

Yxt

Gll

2017

Int. braz j urol.

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“…A ureterocele can cause ureteric obstruction resulting in hydronephrosis which may become superinfected (23,24). An uncomplicated ureterocele is seen at US as an anechoic cyst within the posterior aspect of the urinary bladder (Fig 10), whereas a complicated ureterocele may contain stones, debris, or even tumors (Fig 11) (25,26). During the course of the US examination, a nonobstructed ureterocele may change in size as it fills with urine and empties into the urinary bladder.…”

Section: Ureterocelementioning

confidence: 99%

Nongynecologic Findings Seen at Pelvic US

et al. 2017

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Ultrasonography (US) is frequently the first imaging modality used to examine women with symptoms involving the pelvis. It is widely available and involves no exposure to ionizing radiation. Images can be acquired with a transabdominal, endovaginal, or translabial approach, and the use of video clips and three-dimensional reconstructions can be helpful. US is excellent for assessment of the uterus, ovaries, and adnexa. Occasionally, nongynecologic pelvic diseases arising from the gastrointestinal, genitourinary, and musculoskeletal systems and the pelvic peritoneal and extraperitoneal spaces may be detected and can be a source of diagnostic dilemma. US can be helpful not only in the detection but also occasionally in the characterization of such entities. Computed tomography and magnetic resonance imaging are useful in complicated cases. In this article, the normal US appearance of the bowel and US signs of bowel disease and specific entities, including appendicitis, diverticular disease, bowel obstruction, appendiceal mucocele, and intestinal tumors, are reviewed. The lower urinary tract is included in the field of view in every pelvic US examination; commonly encountered entities related to the urinary bladder, distal ureter, and urethra are illustrated. In addition to arising in the gastrointestinal and genitourinary tracts, pathologic conditions in the pelvis can arise in the peritoneal or extraperitoneal space. Although conditions of the pelvic peritoneal and extraperitoneal spaces are rare, it is important to recognize these entities and distinguish them from the more common gynecologic diseases. Owing to the implications for diagnosis and management, radiologists and other physicians who perform pelvic US should be aware of the spectrum of nongynecologic pathologic entities that can be detected. RSNA, 2017.

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Orthotopic ureterocele with concurrent ureteral urothelial carcinoma in a dog

Kim

Aerin

Traslavina

et al. 2022

Veterinary Medicine & Sci

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A ureterocele is a rare congenital anomaly with cystic dilation of the terminal segment of the ureter entirely within the bladder (orthotopic) or associated with ectopic ureter (ectopic). Its aetiology has not been fully clarified; however, it may involve genetic or acquired factors. Urothelial carcinoma (UC) is the most common type of canine urinary tract neoplasm, among which over 90% of cases are invasive. The non‐papillary (flat) non‐infiltrating form accounts for a very small percentage of canine UCs and is considered carcinoma in situ (CIS). The neoplastic cells of CIS remain within the ureteral mucosa and do not breach the basement membrane. UCs originating from the canine ureter are extremely rare, and no report of a ureteral UC concurrently occurring with a ureterocele has been reported. A 7‐year‐old castrated male Maltese dog weighing 3.5 kg was referred with a 2‐week history of lethargy, anorexia, pollakiuria and intermittent panting. The dog underwent open surgery for removal of bladder calculi 2 years prior, and at the time of the surgery, no other urinary system abnormalities were identified. Ultrasonographic and computed tomographic scans revealed a severely enlarged right kidney and ureter with a ureterocele on the ipsilateral side. A diagnosis of an orthotopic ureterocele causing hydronephrosis and hydroureter was established. Complete nephroureterectomy and ureterocelectomy using the marsupialisation technique were performed. The postoperative histological examination of the excised tissues showed a multifocal carcinoma in situ (non‐papillary non‐infiltrating UC) in the proximal ureter and a fluid‐filled kidney with a thin rim of fibrotic renal tissue. No neoplastic changes were observed in the ureterocele tissue. Postoperatively, the dog recovered rapidly without complications except temporary urinary incontinence, and no evidence of tumour recurrence was detected by ultrasonography performed 6 months after surgery. This case report describes the first case of a dog with an orthotopic ureterocele and ureteral UC, which occurred concurrently at the ipsilateral side of the ureter. The condition was successfully managed with a nephroureterectomy and partial ureterocelectomy.

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Ureterocele urothelial carcinoma: managing a rare presentation

Cited by 5 publications

References 15 publications

A solitary urothelial tumor arising from one of bilateral ureteroceles

A solitary urothelial tumor arising from one of bilateral ureteroceles

Nongynecologic Findings Seen at Pelvic US

Orthotopic ureterocele with concurrent ureteral urothelial carcinoma in a dog

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