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Histological Changes Associated with Long-term Urethral Stents by Bailey; Foley; Mcfarlane; O’neil; Parkinson; Shah is a Medicine article available to read on EtoBox.

What is Histological Changes Associated with Long-term Urethral Stents about?

## Objective: To assess the histological changes found in patients with long-term external sphincter, prostatic and urethral stents. ## Patients and methods: Eighteen patients with long-term stents (mean time since insertion 3.5 years) were investigated. three had external sphincter stents for detrusor-sphincter dyssynergia secondary to spinal injury, eight had prostatic stents for obstruction secondary to benign prostatic hyperplasia and seven had urethral stents for recurrent strictures. nine stents were occluded at investigation, of which seven were entirely removed. the mucosae overlying the remaining two were biopsied, as were mucosae over the nine patent stents, at urethroscopy. ## Results: The changes observed included polypoid hyperplasia (11 of 18 patients) between and around the stent mesh wires, nonkeratinizing squamous metaplasia (two) or hyperkeratotic squamous metaplasia (seven), chronic inflammation (15) with prominent plasma cell infiltrates (11), variable foreign-body granuloma (two) and microabscess formation (five), usually associated with clefts formed around the stent wires (three of five). ## Conclusion: Stents become incorporated into the urethral wall by a p

Who reads Histological Changes Associated with Long-term Urethral Stents?

Author

Bailey; Foley; Mcfarlane; O’neil; Parkinson; Shah

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley (ISSN 1464-4096)

Published

1998

Language

EN

Field

Medicine (Health Sciences)