What's the most likely diagnosis?

• 74 year-old male with dysuria

1. Osteosarcoma
2. Osteochondroma
3. Chronic prostatitis
4. Bladder cancer
5. Bladder stone

Answer:

 

5. Bladder stone

 

 

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Bladder calculi (stones)

General considerations

• Relatively uncommon in United States
  • Incidence has been decreasing due to better diet, control of infection
  • Remain common in developing countries where it most often affects children
• Usually associated with urinary stasis
  • But can form in normal individuals
  • Recurrent bladder infections are associated with stone formation
• Renal calculi do not predispose to the presence of bladder calculi
• Most often affect males over 50 who have bladder outlet obstruction from an enlarged prostate
• Most common type of bladder stone in adults is uric acid stone
  • In children, the most common type is composed of ammonium acid urate or calcium oxalate
• The chronic presence of bladder calculi has been associated with squamous cell carcinoma of the bladder

 

 

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