Pseudogout Crystals

This microscopic image of pseudogout crystals is from:
Doshi, Jayesh, and Hugh Wheatley. "Pseudogout: an unusual and forgotten metabolic sequela of parathyroidectomy." Head & Neck: Journal for the Sciences and Specialties of the Head and Neck 30, no. 12 (2008): 1650-1653.
Where the original caption reads:

FIGURE 3. Low-power photomicrograph illustrating the morphology of the calcium pyrophosphate crystals under polarization microscopy. [Color figure can be viewed in the online issue, which is available at www.interscience.wiley.com.]

Note, I have replaced the outdated website with the replacement source in my caption.

The inscription on the image highlights the pseudogout crystals with the statement

Rhomboid crystals showing weakly positive birefringence under polarized light

Importantly, this contrasts with the negative birefringence of uric acid crystals. But if you are being tested be certain that crystals are tested immediately they are drawn. Because uric acid crystals will dissipate soon after being drawn.

Leave Pseudogout Crystals to read Pseudogout.

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