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.
Types of Crystals. Uric acid crystals are crystals, of varying sizes and shapes, found in acidic urine. Shapes can resemble rhomboids, parallelograms, and rosettes. They tend to be amber in color and are an indicator of disease processes, such as acute uric acid nephropathy.