|
Medical Definition of Urinary calculi
1. Calculi in any part of the urinary tract. Vesical calculi (bladder calculi) are those found in the urinary bladder; renal calculi (kidney calculi) are those found in the pelvis of the kidney. Types of urinary calculi are often classified by chemical composition or pattern of chemical composition distribution. Urinary calculi types include alternating or combination, cystine, decubitus, encysted, fibrin, hemp seed, matrix, mulberry, oxalate, struvite, urostealith, and xanthic calculi. (12 Dec 1998)