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*[http://commons.wikimedia.org/wiki/File:Gouty_tophus_-_low_mag.jpg Gouty tophus - low mag. (WC)]. | *[http://commons.wikimedia.org/wiki/File:Gouty_tophus_-_low_mag.jpg Gouty tophus - low mag. (WC)]. | ||
*[http://commons.wikimedia.org/wiki/File:Gouty_tophus_-_high_mag.jpg Gouty tophus - high mag. (WC)]. | *[http://commons.wikimedia.org/wiki/File:Gouty_tophus_-_high_mag.jpg Gouty tophus - high mag. (WC)]. | ||
==Pseudogout== | |||
*[[AKA]] ''calcium pyrophosphate dehydrogenase'', abbreviated ''CPPD''. | |||
===General=== | |||
*Classically found in the knee. | |||
===Microscopic=== | |||
Features: | |||
*Crystals with a rhomboid-shaped | |||
**Positively birefringent, blue when aligned. | |||
Notes: | |||
*Memory device: ''ABC+'' = ''a''ligned ''b''lue is ''c''alcium & ''c''uboid - positively birefringent. | |||
=See also= | =See also= |
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