[…] as solitary lesion (Cancer 1999;86:2098) Usually presents de novo, also rarely seen in patients with other prior urothelial neoplasms (Mod Pathol 2003;16:623) Sites Any site in the bladder, most commonly the posterior or lateral wall (Mod Pathol 2003 [pathologyoutlines.com]

• Irritability

  […] urothelium with architectural and cytologic atypia Papillary carcinoma without increased thickness shows marked cytologic and architectural abnormality Lacks prominent umbrella cell layer Polypoid / papillary cystitis: Usually has history of urothelial irritation [pathologyoutlines.com]

• Polyps

  […] of thin papillary fronds lined by prominent umbrella cells Should be distinguished from its morphologic mimics, including papillary urothelial neoplasm of low malignant potential (PUNLMP), urothelial carcinoma, polypoid cystitis and fibroepithelial polyp [pathologyoutlines.com]

[…] for diagnosis Laboratory Urine cytology is negative for malignant cells Radiology description Ultrasound: endovesical papillary lesion Radiology images Images hosted on other servers: USG finding - solitary polypoid lesion Lobulated soft-tissue mass Treatment [pathologyoutlines.com]

[…] solitary lesion (Cancer 1999;86:2098) Usually presents de novo, also rarely seen in patients with other prior urothelial neoplasms (Mod Pathol 2003;16:623) Sites Any site in the bladder, most commonly the posterior or lateral wall (Mod Pathol 2003;16:623) Etiology [pathologyoutlines.com]

[…] of low malignant potential (PUNLMP), urothelial carcinoma, polypoid cystitis and fibroepithelial polyp Terminology Transitional cell papilloma ICD coding ICD-10: D30.3 - benign neoplasm of bladder ICD-O: 8120/0 - transitional cell papilloma, benign Epidemiology [pathologyoutlines.com]