Korean J Radiol.  2001 Mar;2(1):61-62. 10.3348/kjr.2001.2.1.61.

Characteristic Plain Radiographic and Intravenous Urographic Findings of Bladder Calculi Formed over a Hair Nidus: A Case Report

• Lee HJ
• Kim SH

• KMID: 754125
• DOI: http://doi.org/10.3348/kjr.2001.2.1.61

Abstract

We present the characteristic plain radiographic and intravenous urographic (IVU) findings of calculus formed over a hair. A 66-year-old man who had been quadriplegic for 40 years because of vertebral injury was admitted for further evaluation of frequent urinary tract infection. Plain radiography showed a linear, serpiginous calcification in the lower abdomen, and IVU revealed a round filling defect with linear radiopacity in the bladder, suggesting calculus. The gross appearance of the stone after extraction demonstrated that calcification had formed over a hair.

Keyword

Urolithiasis; Bladder stone; Hair; Radiography

MeSH Terms

Aged
Bladder Calculi/*radiography
Case Report
Hair
Human
Male
Quadriplegia/complications
Urography

Figure

• 

  Fig. 1 66-year-old man with bladder calculus formed over a hair nidus. A. Plain radiograph shows serpiginous radiopacity in the lower abdomen (arrows). B. Intravenous urograph demonstrates round filling defect with linear radiopacity (arrows) in the bladder (arrowheads). C. Gross appearance of the calculus after extraction shows that serpentine calcification had formed over a hair (arrows).

Reference

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