👉 Pseudoamuria is a type of kidney stone that resembles a small, hard, and often red or brown-colored solid mass in the kidney. This condition can be caused by an abnormal growth of calcium crystals within the kidney's tunica media, which leads to a buildup of calcium crystals in the surrounding tissue. Pseudoamuraises are typically smaller than typical kidney stones and can form inside the kidney without causing any symptoms or requiring treatment.