Clinical Question-9


A 65 years male presented with complain of

Flank pain with radiation towards the groin – 6 months which is progressively increasing in nature.

Episodes are Associated with Nausea and vomitting

Diabetes and Hypertension.

On Examination there is – Costovertebral angle tenderness


What is your most probable Diagnosis ?


A. Cholelithiasis 

B. Inguinal Hernia

C. Nephrolithiasis

D. Intestinal ischemia



Patient suspected to have Nephrolithiasis. Which is the standard imaging modality in the diagnosis of nephrolithiasis?


A. Ultrasonography

B. X-Ray KUB

C. Non-contrast enhanced computed tomography (CT) scan

D. Intravenous pyelograms



Stone removed from kidney and Image given below.


What is the most probable diagnosis?


Kidney stone 1

User:Михајло Анђелковић, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons


Urinary uric crystals seen under regular microscopy.

Scientific Figure on ResearchGate. Available from: https://www.researchgate.net/figure/Urinary


A. calcium oxalate

B. uric acid

C. cystine

D. struvite



What is the color of uric acid stones ?


Uric acid crystals are colorless.

Uric acid kidney stones are often red–orange–brown in color.

The stone color originates from a variety of components in the matrix, some of which are a broad range of urinary pigments or urochrome.


What is the color of uric acid stones


Uric acid stones – Light microscopy of urine- urinary crystallizations with characteristic rectangular or rhomboid-shaped uric acid crystals.

Finding such crystals, along with an acidic urinary pH of 5.5 or less, is suggestive but not diagnostic of uric acid urolithiasis.


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