Pizza is a common fast food category in the United States, with chains such as Papa John's, Domino's Pizza, Sbarro and Pizza Hut. Menus are more limited and standardized than in traditional pizzerias, and pizza delivery, often with a time commitment, is offered.
Leucine crystals in Urine. 1  Leucine crystals are abnormal in urine.  Appearance: yellow-brown spheroids with concentric rings around the outer edge and radial striations in the center.
Urine Crystals. Urine crystals are a type of urine sediment. Several different types of urine crystals can be seen in normal testing samples. Abnormal findings in urine which show up as urine crystals are ketones, protein, bacteria, blood (hematuria), glucose, pus, and certain crystals.