Calcium phosphate crystals in the urine

Urine sediment showing calcium phosphate crystals. Calcium phosphate crystals form in alkaline urine and have a variety of shapes including prisms that may coalesce into a rosette-like appearance.

From: Graff L. Handbook of Routine Urinalysis, Lippincott Williams & Wilkins 1983. Copyright © 1983. Reproduced with permission from Wolters Kluwer Health. Unauthorized reproduction of this material is prohibited.

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