abstract background: stphylococcus cohnii is an organism of coagulase negative species which is considered as normal flora. however, it has been isolated from urinary tract infections and surgical prostheses but its relation with staghorn stones has not been reported, yet. case presentation: a 50-years-old woman presented with left renal staghorn stone in june 2014. she had bilateral staghorn s...

Abstract Background: Stphylococcus cohnii is an organism of coagulase negative species which is considered as normal flora. However, it has been isolated from urinary tract infections and surgical prostheses but its relation with staghorn stones has not been reported, yet. Case Presentation: A 50-years-old woman presented with left renal staghorn stone in June 2014. She had bilateral staghorn...

INTRODUCTION Most bladder stones develop in patients with bladder outlet obstruction. Intravesical stone formation after surgery outside the urinary bladder is rare. CASE PRESENTATION A 54-year-old Taiwanese woman with lower urinary tract symptoms following a hysterectomy 14 years ago presented to our hospital. The intravesical calculus had developed from non-absorbable sutures and hung on th...

PURPOSE To report the outcomes of laparoscopic surgery combined with endourological assistance for the treatment of renal stones in patients with associated anomalies of the urinary tract. To discuss the role of laparoscopy in kidney stone disease. MATERIALS AND METHODS Thirteen patients with renal stones and concomitant urinary anomalies underwent laparoscopic stone surgery combined with anc...

Urinary stone disease is global problem and is due to alteration in the normal crystallization environment of urine in the urinary tract systems. Major factors responsible for crystal formation are super-saturation of Ca salts and level of crystallization inhibitors (Citrate & Phytate). Excessive citrate intake makes the urine more alkaline (pH between 6 and 7). This can be achieved by oral adm...

It is extremely rare that the urinary bladder stones cause vesicorectal fistulas. Urinary tract infection and poor fluid intake are the main etiologies that precipitate vesical stone formation, and subsequent rectovesical fistula. We present a complicated case of neglected vesical stone, which recurred 3 times. The patient presented with passage of urine per rectum leading to fecal incontinence...