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.
Amorphous crystals are often identified on the basis of the urine pH. In an acid specimen, urates are reported, in an alkaline specimen, amorphous phosphates are reported. This simplification should be used with care. Amorphous phosphates and triple phosphates are sometimes observed in slightly acid specimens.