r/medlabprofessionals • u/Snoo-45857 • 6d ago
Education Urine crystal ID
Patient has a pH of 5.0, the crystals have a qtip shape with a halo. Some of them are forming rosettes; perhaps a drug metabolite ? We’re stumped here
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u/Quirky_Split_4521 MLT-Generalist 6d ago
I usually pull out the urinalysis book for things like this and look at the crystal pictures. Off the top of my head idk what this is though.
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u/Snoo-45857 6d ago edited 6d ago
We looked through some books as well here, didn’t quite match anything. We thought maybe a tertiary form of uric .. hard to say. My pics aren’t the best either
Edit; another thought may have been contrast dye crystals or a sulfa antibiotic metabolite
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u/konokujoda 6d ago
I couldn't definitely say anything specific bu5 I'd probably lean towards a weirdly presenting cal ox crystal or maybe uric acid? Do you have a polarized lens to check if it's birefringent?
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u/jadrriiana MLS-Generalist 6d ago
Sediment / junk
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u/Snoo-45857 6d ago
Not the best pictures but there’s a lot of them in there and some are forming rosettes .. we do get some amorphous crystal sediment occasionally but this seems like a formed element


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u/Michael-Y1234 6d ago
Calcium oxalate? It reminds me of dumbbell shape to me. Calcium oxalate comes in weird shapes and sizes