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Query: UMLS:C0403608 (ureter)
 9,655 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Inverted papilloma of the pelvis and the ureter is a rather uncommon (only 40 cases in the relevant literature) benign epithelial tumor, occasionally harboring foci of malignancy. Since it does not metastasize, a conservative treatment is advisable, but a strict follow up is always required. The Authors report a case of inverted papilloma of the ureter near which an area of transitional carcinoma was discovered.
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PMID:[Inverted papilloma associated with transitional cell carcinoma in the upper urinary tract: report of one case and review of the literature]. 214 19

Inverted papilloma of the ureter is a rare tumor generally considered to be a benign lesion. We present a case of ureteral inverted papilloma with malignant transformation and review the literature. Ten cases of ureteral inverted papillary tumors in Japan and 13 cases of inverted papillary tumors associated with malignancy in the urinary tract in the world literature have been analyzed to define their features. Inverted papillary tumors of the ureter have distinct clinicopathological features, but most are discovered retrospectively after nephroureterectomy. From the standpoint of clinicopathological features, inverted papillary tumor of the ureter should be distinguished from its exophytic counterpart with respect to the treatment. If the tumor can be diagnosed macro- and microscopically during surgery as inverted papilloma or malignant inverted papillary tumor without invasion, partial ureterectomy including the lesion may be recommended. Furthermore, we propose the hypothesis that inverted papillary tumor could be a neoplasm of basal cell origin in the transitional epithelium, termed 'basal cell urothelioma'.
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PMID:Inverted papilloma of the ureter with malignant transformation: a case report and review of the literature. The importance of the recognition of the inverted papillary tumor of the ureter. 329 85

An inverted papilloma of the ureter with ipsilateral hydronephrosis was found in a 77-year-old man who had a history of prostatic carcinoma. Inverted papilloma of the urothelium is a rare lesion, with the vast majority of cases being found in the bladder. To date none has been documented in the ureter.
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PMID:Lobulated inverted papilloma of the ureter. 735 38

A 63-year old man presented with urinary frequency and urge. An IVU showed a tumour in the lower right ureter. Partial ureterectomy was done with a uretero-ureterostomy. Pathological investigation showed an inverted papilloma. Inverted papilloma of the ureter should always be considered in the differential diagnosis before major surgery is done. There is an association between inverted papilloma and urothelial carcinoma. Our patient developed an invasive bladder tumour 6 years after the operation on the inverted papilloma.
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PMID:Inverted papilloma of the ureter with subsequent invasive bladder cancer. 949 98

Inverted papilloma of the upper urinary tract is a rare lesion and the differential diagnosis with transitional cell carcinoma is really hard. A case of 49 year-old male with recurrent right flank pain is reported. Excretory urogram suggested a filling defect involving the right mid ureter and bilateral retrograde pyelogram that confirmed a solitary filling defect in the right mid-ureter, while selective urinary cytology was positive for transitional cell carcinoma G1. Conservative therapy was carried out and 2 years follow-up with several excretory urograms and ultrasound studies revealed no recurrence.
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PMID:[Unusual case of inverted papilloma in a fibro-epithelial polyp of the ureter]. 1134 17

Inverted papilloma of the ureter is a rare lesion. We report a case of ureteral inverted papilloma with a non-functional kidney. A 66-year-old male was admitted to our hospital for investigation of left hydronephrosis. Left ureter tumor was diagnosed on X-ray (retrograde pyelogram, CT) and total nephro-ureterectomy was performed. The pathological diagnosis was ureteral inverted papilloma. Diagnosis and treatment of ureteral inverted papilloma are discussed.
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PMID:[Inverted papilloma of the ureter with non-functional kidney: a case report]. 1497 57

Inverted papilloma of the ureter is a rare entity, often mistaken for malignancy during work-up. As such, many of these patients have been unnecessarily treated with nephroureterectomy. Herein, we describe a novel laparoscopic approach for the treatment of a ureteral inverted papilloma. To our knowledge, this approach is the first application of laparoscopy for the treatment of this lesion.
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PMID:Case report: laparoscopic resection of ureteral inverted papilloma. 1680 51

Inverted papilloma (IP) of the urothelium accounts for 2.2% of urothelial neoplasms. The aim of this study was to report the results of 13 patients with urinary IP, pointing out the clinical features, presentations, treatment options and outcomes. The mean age and mean follow-up periods of the patients were 60.23 +/- 3.25 (range, 44-81) years and 30 (range, 6-42) months, respectively. There was no coexistence of urothelial carcinoma with IP at presentation. Cystoscopy showed a solitary papillary tumor in the bladders of 11 patients and solid pedunculated tumors in the remaining two patients. The site of development was the bladder in 12 cases (92%) and ureter in one (8%) case. Transurethral bladder tumor resection was performed in 12 cases. For the case with IP in the ureter, nephroureterectomy was performed. Pathologic examination demonstrated that seven of the 13 cases were of the trabecular type and six were of the glandular type. Of the 13 cases, two (7%) had recurrence, at 1 year and 1 month and 1 year and 5 months from initial resection. The male to female ratio was 5.5:1. Initial symptoms included macroscopic hematuria in five cases, microscopic hematuria in four, and dysuria and microscopic hematuria in three; one case was asymptomatic. IPs of the urinary bladder are benign tumors that can be treated successfully by transurethral resection and fulguration of the tumor bed. In addition, these lesions must be followed up closely for recurrence and malignant transformation.
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PMID:Evaluation of urinary inverted papillomas: a report of 13 cases and literature review. 1821 66