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  1. Saurabh Odak1,
  2. Deepti Bhargava2,
  3. Mohammad Kamara3
  1. 1Department of Emergency Medicine, Fairfield General Hospital, Warrington, UK
  2. 2Department of Neurosurgery, Walton Center, Liverpool, UK
  3. 3Department of Emergency Medicine, Fairfield General Hospital, Bury, UK
  1. Correspondence to Saurabh Odak, saurabhsodak{at}gmail.com

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Description

Urethral calculi could be either classified as either primary or secondary calculi based on their origin. Primary calculi form in the urethra, whereas secondary calculi have their origin elsewhere in the urinary tract.1 True primary calculi are rare and they mostly form in prostatic and membranous part of urethra.2 ,3 Secondary urethral calculi most commonly form in the bladder. Bladder calculi less than 10 mm usually passes spontaneously but larger calculi usually get impacted on usually along the posterior urethra, the most common site of impaction and obstruction due to a secondary calculus.3

We present an unusual case of a 52-year-old Caucasian man who presented to us with sudden onset of urethral colic and acute urinary retention secondary to a large calculus measuring 20 mm×8 mm×8 mm impacting on the external urethral meatus (anterior urethra) (figures 1A and 1B). This patient was previously diagnosed with a right-sided renal calculus based on ultrasound scanning of his urinary tract measuring 7 mm×3 mm. This calculus was removed in the emergency department, which alleviated his symptoms. The patient subsequently underwent further investigations in the form of Cystoscopy, retrograde cystourthrogram, renal ultrasound and intravenous urography and was cleared of any other calculi.

Figure 1(A,B)

Large urethral calculus measuring 20 mm×8 mm×8 mm.

Learning point

  • This report highlights that not all the secondary urethral calculi originating from the bladder impacts in posterior urethra. These can also get impacted in the anterior urethra.

References

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Footnotes

  • Competing interests None.

  • Patient consent Obtained.

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