Uric Acid Kidney Stones Radiolucent. Acid urine ph low urine volume and hyperuricosuria. Cystine calculi are only faintly radiodense while uric acid stones are usually entirely radiolucent.
Clinical ultrasound third edition 2011. Stone size varied from 4 40 mm. A high serum uric acid level correlated with a higher incidence of dissolution.
A uric acid test measures the amount of uric acid in the blood or urine.
Of the patients 17 had renal u s and six had ct kub as end point imaging. However the most important factor for uric acid stone formation is persistently acidic urine that represents a prerequisite for uric acid stone formation and growth. Uric acid stones are one of four major types of kidney stones which include calcium stones calcium oxalate and calcium phosphate struvite stones and cystine stones. Magnesium ammonia phosphate struvite and cystine calculi are less radiodense and are more difficult to visualize.