Image DDX

"Calcification in the Neck"



Case of the Week 253

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



5. Bladder stone



More (Click Discussion Tab)

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



More ...

Available now in textbook form!

  • Just the knowledge you need to know
  • For clinical rotations, USMLEs, radiologic technology
  • Bonus access to for more interactive quizzes, anatomy exercises, full text
  • Click the book cover for more information is an award-winning educational site aimed primarily at medical students and radiology residents-in-training, containing  lectures, handouts, images, Cases of the Week, archives of case quizzes, flashcards of differential diagnoses and “most commons” lists, primarily in the areas of chest, GI, cardiac, and bone radiology.