Quantitative assessment of urinary calculus (renal stone) constituents by infrared analysis (IR) is hampered by the need of expert knowledge for spectrum interpretation. Our laboratory performed a computerized search of several libraries, containing 235 reference spectra from various mixtures with different proportions was performed. Library search was followed by visual interpretation of band ...

BACKGROUND Electrohydraulic lithotripsy (EHL) has been used as an alternative to cystotomy in human medicine to remove urinary calculi. This prospective study evaluated the efficacy and safety of EHL to remove urinary calculi in dogs. HYPOTHESIS EHL is an efficient and safe method of treatment of bladder and urethral calculi in dogs. METHODS Dogs presented between January 1, 2005 and June 1...

BACKGROUND Since the outbreak of renal diseases among children who had consumed melamine-tainted powdered formula in 2008, urinary system ultrasound examination was carried out for these children at our hospital. This study aimed to investigate the ultrasonographic characteristics of urolithiasis caused by melamine-tainted powdered formula. METHODS From September 12 to October 9, 2008, urinar...

Rev Assoc Med Bras 2009; 2010; 56(1): 723-8 *Correspondence: Rua Barata Ribeiro, No 490 Sala 25 – Bela Vista São Paulo – Sp, Brazil Cep: 01309-000 AbstrACt Objective. To review developments in the diagnosis and treatment of urinary lithiasis. MethOds. A review of the most important articles on the subject published in Medline indexed periodicals between 1979 and 2009. Results. Stones occur with...

That the anuria was apparently painless yet due to bilateral obstruction of the ureters by calculi is noteworthy. Herring,4 in a study of 10 000 urinary calculi, found only 89 to contain cystine, of which about 700,, were composed of pure cystine, as in our case. Thus urinary tract calculi may be due to cystinuria even in a young child. Cystinuria5 is a recessive or incompletely recessive genet...

PURPOSE This study aimed to assess the accuracy of low-dose dual-energy computed tomography (DECT) in predicting the composition of urinary calculi. MATERIALS AND METHODS A total of 52 patients with urinary calculi were scanned with a 128-slice dual-source DECT scanner by use of a low-dose protocol. Dual-energy (DE) ratio, weighted average Hounsfield unit (HU) of calculi, radiation dose, and ...

Congenital diverticulum of male urethra is an uncommon entity. Neglected management complicates the process in the form of calculi formation and recurrent urinary infection. A 10-year-old boy presented with urinary voiding disturbances and development of a painless hard lump at the penoscrotal junction. Imaging demonstrated presence of anterior urethral diverticulum with contained calculi in it...

A 50-year-old woman presented with a 2-years history of chronic flanc and hematuria. Plain abdominal radiography was performed showing bilateral complete staghorn calculi. Urinalysis and urine culture revealed a urinary infection by Proteus Morganii. Biologic investigations did not show any matabolic disorder. The urinary infection was treated by antibiotics and the stone by a combination of pe...

Extensive prostatic calculi in a young man should always elicit the suspicion of alkaptonuria. Although prostatic calculi are seen in chronic prostatitis, chronic pelvic pain syndrome and benign prostate hyperplasia, none of these have prostatic calculi or calcification as extensive as in alkaptonuria. A 36 years young man who had severed obstructive lower urinary tract symptoms with extensive ...