Difference between revisions of "Crystals in body fluids"
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[[Image:Gout_-_monosodium_urate_crystals_(20X,_polarized,_red_compensator).jpg|thumb|right|Crystals (gout) and blood cells. (WC/Gabriel Caponetti)]] | [[Image:Gout_-_monosodium_urate_crystals_(20X,_polarized,_red_compensator).jpg|thumb|right|Crystals (gout) and blood cells in [[polarized light]]. (WC/Gabriel Caponetti)]] | ||
[[Image: Crystals in urine - uc -- very high mag - animation.gif | Crystals - very high mag.|thumb|right|Crystals | [[Image: Crystals in urine - uc -- very high mag - animation.gif | Crystals - very high mag.|thumb|right|Crystals in urine. (WC)]] | ||
This article deals with '''crystals in body fluids'''. | This article deals with '''crystals in body fluids'''. | ||
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Image: Uric acid crystals (urine) - Ürik asit kristalleri (idrar) - 03.png | Uric acid crystals. (WC) | Image: Uric acid crystals (urine) - Ürik asit kristalleri (idrar) - 03.png | Uric acid crystals. (WC) | ||
Image: Calcium oxalate crystals in urine.jpg | Calcium oxalate crystal - envelope-shaped. (WC) | Image: Calcium oxalate crystals in urine.jpg | Calcium oxalate crystal - envelope-shaped. (WC) | ||
Image: Fluorescent uric acid.JPG | Uric acid crystals. (WC) | |||
</gallery> | </gallery> | ||
====Case==== | ====Case==== | ||
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*[[Medical renal diseases]]. | *[[Medical renal diseases]]. | ||
*[[Nephrolithiasis]] - kidney stones. | *[[Nephrolithiasis]] - kidney stones. | ||
*[[Polarized light]]. | |||
=References= | =References= | ||
Latest revision as of 04:58, 24 April 2016
.jpg)
Crystals (gout) and blood cells in polarized light. (WC/Gabriel Caponetti)
This article deals with crystals in body fluids.
Crystals
Joint crystals
Types:[1]
- Gout = needle-shaped, negatively birefringent, yellow when aligned.
- Pseudogout = rhomboid-shaped, positively birefringent, blue when aligned.
Notes:
- Pseudogout also known as CPPD = calcium pyrophosphate dehydrogenase.
- Memory device: ABC+ = aligned blue is calcium & cuboid - positively birefringent.
Urine crystals
Types - morphology:
- Envelope shape (calcium oxalate).
- Diamond shape (uric acid).
- Coffin-lid shape (struvite).
- Hexagonal shape (cysteine).
Notes:
- Memory devices:
- Diamonds are see-through; ergo, uric acid stones not seen on KUB.
- Calcium oxalate = envelope, uric acid = diamond.
- Uric acid crystals: usually dissolve in formalin... but do not dissolve in alcohol.[2][3]
- Calcium oxalate crystals are seen in the context of ethylene glycol poisoning.[4]
Images
Struvite crystals. (WC)
Uric acid crystals. (WC)
Calcium oxalate crystal - envelope-shaped. (WC)
Uric acid crystals. (WC)
_-_%C3%9Crik_asit_kristalleri_(idrar)_-_03.png)
Case
Crystals - high mag.
Crystals - high mag.
Crystals - very high mag.
Crystals - very high mag.
Crystals - very high mag.
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Urine cytology
Negative for malignant cells. Mainly squamous cells present. Cuboidal/rhomboidal crystals present.
Diseases
Gout
Main article: Gout
Pseudogout
Main article: Chondrocalcinosis
See also
- Cytopathology.
- Medical renal diseases.
- Nephrolithiasis - kidney stones.
- Polarized light.
References
- ↑ Yeung, J.C.; Leonard, Blair J. N. (2005). The Toronto Notes 2005 - Review for the MCCQE and Comprehensive Medical Reference (2005 ed.). The Toronto Notes Inc. for Medical Students Inc.. pp. RH6. ISBN 978-0968592854.
- ↑ Geddie, W. 8 January 2010.
- ↑ Shidham, V.; Chivukula, M.; Basir, Z.; Shidham, G. (Aug 2001). "Evaluation of crystals in formalin-fixed, paraffin-embedded tissue sections for the differential diagnosis of pseudogout, gout, and tumoral calcinosis.". Mod Pathol 14 (8): 806-10. doi:10.1038/modpathol.3880394. PMID 11504841.
- ↑ Saukko, Pekka; Knight, Bernard (2004). Knight's Forensic Pathology (3rd ed.). A Hodder Arnold Publication. pp. 589. ISBN 978-0340760444.
- ↑ URL: http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0001458/. Accessed on: 28 October 2011.