Urostealith: Difference between revisions

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'''Urostealith''' is a [[lipid|fatty]] or [[rosin|resinous]] substance identified by the [[Austrian people|Austrian]] [[chemistry|chemist]] [[Johann Florian Heller|J. F. Heller]] in 1845 as the main constituent of some [[bladder stone]]s.<ref name="olio">
{{Short description|A rare type of urinary calculus}}
  Giuliano dall'Olio (2008), ''Nuovo componente dei calcoli vescicali — L’ “urostealite ” di Heller''. (In Italian) RIMeL - IJLaM, volume 4, issue 1, Società Italiana Medicina di Laboratorio. [http://www.simel.it/articoli/articolo-2354.pdf Online version] accessed on 2009-07-30.
</ref>


According to Heller's and other contemporary descriptions, urostealith is a soft brown substance, insoluble in water, sparingly soluble in [[ethanol|alcohol]] and easily soluble in [[diethyl ether|ether]]. Upon heating it softens at first, then expands and carbonizes before melting. It dissolves in solutions of [[sodium carbonate]], and the latter was successfully used by Heller to dissolve and break up stones in a patient's bladder.
'''Urostealith''' is a rare type of [[urinary calculus]] or [[bladder stone]] that forms in the [[urinary tract]]. Unlike typical [[urinary stones]] that are primarily composed of mineral salts, urostealiths are composed of [[fatty acids]] and [[calcium]].


Urostealith stones seem to be very rare.<ref name="mater">
==Formation==
S. Materazzi, R. Curini, G. D'Ascenzo, and A. D. Magri (1995), ''TG-FTIR coupled analysis applied to the studies in urolithiasis: characterization of human renal calculi''.  Termochimica Acta, volume 264, 75--93.
Urostealiths form under specific conditions in the urinary tract. They are believed to develop when there is an accumulation of [[lipids]] and [[calcium]] in the urine. This can occur due to metabolic abnormalities or infections that alter the composition of urine, leading to the precipitation of these substances.
</ref>  The circumstances that lead to their formation, as well as the composition of the substance, are still obscure, and little has been published on the topic.<ref name="wagman">
  Edward Wagman; Anthony Barbara; James Marquis; Marvin Chirls; Anita Falla (1966), ''Renal Fat Embolization and Urostealith Formation Complicating Femoral Fracture''.  Journal of the American Medical Association, Vol. 198, Issue 7, 721-723 [http://jama.ama-assn.org/cgi/reprint/198/7/721 Online version] accessed on 2009-07-30.
</ref>


==See also==
==Composition==
* [[Lipiduria]]
The primary components of urostealiths are [[fatty acids]] and [[calcium]]. The fatty acids are typically long-chain fatty acids that can combine with calcium to form insoluble compounds. This composition is distinct from more common types of urinary stones, such as [[calcium oxalate]] or [[uric acid]] stones.


==References==
==Clinical Significance==
{{Reflist}}
Urostealiths are rare and may not be easily detected with standard imaging techniques used for more common types of urinary stones. They can cause similar symptoms to other urinary stones, such as [[hematuria]], [[dysuria]], and [[urinary tract infections]].


[[Category:Urology]]
==Diagnosis==
Diagnosis of urostealiths may require specialized imaging techniques or chemical analysis of the stone composition. [[Ultrasound]] and [[CT scans]] may be used to identify the presence of stones, but the unique composition of urostealiths may necessitate further analysis.
 
==Treatment==
Treatment of urostealiths involves addressing the underlying cause of their formation and removing the stones from the urinary tract. This may include [[surgical removal]] or [[lithotripsy]], a procedure that uses shock waves to break the stones into smaller pieces that can be passed naturally.
 
==Prevention==
Preventive measures for urostealiths focus on managing the underlying metabolic or infectious conditions that contribute to their formation. This may involve dietary modifications, medications to alter urine composition, or treatment of infections.


==Related pages==
* [[Urinary stone disease]]
* [[Bladder stone]]
* [[Calcium oxalate]]
* [[Uric acid]]


{{disease-stub}}
[[Category:Urology]]
[[Category:Urinary system]]
[[Category:Stones]]

Latest revision as of 19:25, 22 March 2025

A rare type of urinary calculus


Urostealith is a rare type of urinary calculus or bladder stone that forms in the urinary tract. Unlike typical urinary stones that are primarily composed of mineral salts, urostealiths are composed of fatty acids and calcium.

Formation[edit]

Urostealiths form under specific conditions in the urinary tract. They are believed to develop when there is an accumulation of lipids and calcium in the urine. This can occur due to metabolic abnormalities or infections that alter the composition of urine, leading to the precipitation of these substances.

Composition[edit]

The primary components of urostealiths are fatty acids and calcium. The fatty acids are typically long-chain fatty acids that can combine with calcium to form insoluble compounds. This composition is distinct from more common types of urinary stones, such as calcium oxalate or uric acid stones.

Clinical Significance[edit]

Urostealiths are rare and may not be easily detected with standard imaging techniques used for more common types of urinary stones. They can cause similar symptoms to other urinary stones, such as hematuria, dysuria, and urinary tract infections.

Diagnosis[edit]

Diagnosis of urostealiths may require specialized imaging techniques or chemical analysis of the stone composition. Ultrasound and CT scans may be used to identify the presence of stones, but the unique composition of urostealiths may necessitate further analysis.

Treatment[edit]

Treatment of urostealiths involves addressing the underlying cause of their formation and removing the stones from the urinary tract. This may include surgical removal or lithotripsy, a procedure that uses shock waves to break the stones into smaller pieces that can be passed naturally.

Prevention[edit]

Preventive measures for urostealiths focus on managing the underlying metabolic or infectious conditions that contribute to their formation. This may involve dietary modifications, medications to alter urine composition, or treatment of infections.

Related pages[edit]