Lab test interpretation

Feline Urine Crystals at pH 5.5: A Microscopy Challenge

Clinical case: microscopy of native feline urine sediment at pH 5.5. Identify the nature of the crystals and characteristic structures after drying.

Anonymous question from a subscriber. Native feline urine smear. pH 5.5. Can you tell me what these crystals are? After drying under the coverslip, it has a characteristic pattern, a design.