Experimental and clinical aspects of calculogenesis about foreign bodies are reviewed.
Factors such as infections, urine dilution, urinary pH, and suture materials are discussed …

Most calculi of the urinary system arise from common components of urine, such as calcium
oxalate or phosphate or uric acid. Still other calculi may be promoted by anatomic or …

An exhaustive search of the literature covering the past 24 years reveals surprisingly few~
ases of foreign bodies in the kidney. There were only 8 cases in the American and S in the …

METHODS Plan of experiments. Adult male white rats of a single strain and weighing 200-
250 gm. each were used throughout this study. The method used to induce calculus was the …

In a consideration of unusual forms of lithiasis occurring in the urinary tract, I am selecting at
random certain types which I have observed in recent years. To the various types of urinary …

METHODS Throughout the experiment young adult male rats weighing 150-250 gm. have
been used. All operations were done under ether or nembutal anesthesia. The instruments …

The formation of stones in the urinary tract has plagued man for centuries A vesicular
calculus has been found in a 7000 year old Egyptian mummy," and Hippocrates discussed …

FOREIGN bodies in the bladder occur with siifficient frequency t'o render them an important
addition to the diseases of the urinary organs. Their presence is to be explained by a variety …

The mystery of stone formation in the human body has engaged the attention of physicians
from the earliest dawn of medical history. If the cause could be definitely ascertained, a …

A study of the literature reveals that foreign bodies of the most varied types have been
frequently reported within the urethra. It is amazing to note the enormous variety of such …