title: Structural and ultrastructural modifications following transurethral injection of teflon paste.
abstract: Structural and ultrastructural tissue modifications caused by polytetrafluoroethylene (teflon) paste injection in incontinent male patients have been studied. The most considerable observations are: a diffuse interstitial splitting of teflon paste in particles of about 3-100 microns. Given that the tissue reaction is limited to a modest infiltration of lymphocytes and monocytes and a slight increase in the collagen fibres, it is concluded that the teflon paste injection is well tolerated by the tissues.
authors.affiliation: University La Sapienza of Rome, Department of Human Biopathology, Pathologic Anatomy and Histopathology (IV), Italy.
authors.forename: V
authors.initials: V
authors.lastname: Petrozza
authors.forename: F
authors.initials: F
authors.lastname: Carpino
authors.forename: M
authors.initials: M
authors.lastname: Ricci
authors.forename: C
authors.initials: C
authors.lastname: Anceschi
authors.forename: M
authors.initials: M
authors.lastname: Melis
mesh_terms: D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D011138:Polytetrafluoroethylene / Q000008:administration & dosage / Q000009:adverse effects*; D014521:Urethra / Q000187:drug effects / Q000648:ultrastructure; D014549:Urinary Incontinence / Q000473:pathology / Q000628:therapy*
chemical_list: D011138:Polytetrafluoroethylene