Villous Adenoma of Urinary Tract: A Common Tumor in an Uncommon Location

Villous adenoma is a rare pathology seen in the urinary tract; it is mostly found in the large bowel. When encountered in the urinary tract, it mainly originates from intestinal segments of urinary reconstruction. Villous adenoma is commonly seen in patients more than 50 years and has a male predominance. In the urinary tract, it has been reported in the urachus, bladder dome and trigone. A few cases of villous adenoma have been described in the literature. We report a case of primary villous adenoma in the remnant of the urachus and discuss the pathophysiology, investigation and management.

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Villous adenoma of the urinary tract: A lesion frequently associated with malignancy

Human Pathology ◽

10.1053/hupa.2002.129197 ◽

2002 ◽

Vol 33 (11) ◽

pp. 1150 ◽

Cited By ~ 2

Author(s):

J.Fernando Val-Bernal ◽

Marta Mayorga ◽

M.Francisca Garijo

Keyword(s):

Urinary Tract ◽

Villous Adenoma

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Villous adenoma of the urinary tract: A lesion frequently associated with malignancy

Human Pathology ◽

10.1053/hupa.2002.31293 ◽

2002 ◽

Vol 33 (2) ◽

pp. 236-241 ◽

Cited By ~ 55

Author(s):

Jeffrey L. Seibel ◽

Saket Prasad ◽

Robert E. Weiss ◽

Edita Bancila ◽

Jonathan I. Epstein

Keyword(s):

Urinary Tract ◽

Villous Adenoma

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Villous Adenoma Arising in the Native Bladder Mucosa and the Upper Urinary Tract With Coexisting Neuroendocrine Carcinoma Following Augmentation Cystoplasty

International Journal of Surgical Pathology ◽

10.1177/1066896919826708 ◽

2019 ◽

Vol 27 (4) ◽

pp. 450-456

Author(s):

Anupma Nayak ◽

Brittany Depasquale ◽

Norge Vergara ◽

Thomas A. Guzzo ◽

Priti Lal

Keyword(s):

Urinary Tract ◽

Neuroendocrine Carcinoma ◽

Renal Pelvis ◽

Villous Adenoma ◽

Upper Urinary Tract ◽

Augmentation Cystoplasty ◽

Bladder Mucosa ◽

Unique Case ◽

History Of ◽

Villous Adenomas

Villous adenomas arising in the bladder following augmentation cystoplasty procedures are exceedingly rare. Even rarer is their occurrence in the native bladder mucosa and the upper urinary tract. In this article, we present a unique case of multifocal recurrent villous adenoma involving native bladder mucosa of an augmented bladder, bilateral ureters, and renal pelvis, with coexistent foci of adenocarcinoma and neuroendocrine carcinoma, in a patient with history of augmentation colocystoplasty. We additionally discuss the pathogenesis of development of carcinoma in the setting of augmentation cystoplasty.

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Urinary Tract Villous Adenoma

Encyclopedia of Pathology ◽

10.1007/978-3-319-28845-1_4977-1 ◽

2019 ◽

pp. 1-2

Author(s):

Maria Rosaria Raspollini ◽

Antonio Lopez-Beltran

Keyword(s):

Urinary Tract ◽

Villous Adenoma

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Double Retroperitoneal Hydatid Localization: A Case Report

The Korean Journal of Urological Oncology ◽

10.22465/kjuo.2021.19.4.281 ◽

2021 ◽

Vol 19 (4) ◽

pp. 281-284

Author(s):

Ramzi Mejri ◽

Kays Chaker ◽

Mokhtar Bibi ◽

Sami Ben Rhouma ◽

Yassine Nouira

Keyword(s):

Public Health ◽

Case Report ◽

Urinary Tract ◽

Hydatid Cyst ◽

Health Problem ◽

Public Health Problem ◽

Psoas Muscle ◽

Unusual Presentation ◽

Hydatid Cysts ◽

Uncommon Location

The hydatid cyst is a parasitic pathology which is endemic in Tunisia and presents a public health problem. Hydatid cysts located in the retroperitoneum, especially around or in the kidney, are rare and only represent 5% of visceral locations. The kidney is the most commonly affected organ of the urinary tract. The psoas muscle is an uncommon location and not less than 70 cases have been cited. We report the case of an unusual presentation of a right kidney hydatid cyst associated with a psoas muscle location. To our knowledge, this association of double retroperitoneal location has not been reported in the literature.

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