title: Case report: percutaneous nephrolithotomy for a stone on a Hem-o-lok clip.
abstract: A patient was referred to our department for management of a renal pelvis "stone." During percutaneous nephrolithotomy, the stone was discovered to have formed around a Hem-o-lok clip, retained from a previous surgical procedure. As with other surgical foreign bodies, the Hem-o-lok acts as a nidus for stone formation if in prolonged contact with urine. It is radiolucent and therefore crucial to apply with caution in proximity to the urinary tract.
authors.affiliation: Department of Urology, Guys Hospital, London, United Kingdom. ranandg@yahoo.co.uk
authors.forename: Ranan
authors.initials: R
authors.lastname: Dasgupta
authors.forename: Kirsty
authors.initials: K
authors.lastname: Hannah
authors.forename: Jonathan
authors.initials: J
authors.lastname: Glass
mesh_terms: D000328:Adult; D006801:Humans; D007669:Kidney Calculi / Q000209:etiology* / Q000601:surgery; D008297:Male; D009403:Nephrostomy, Percutaneous; D013525:Surgical Instruments / Q000009:adverse effects*