Kidney stones are solid deposits of minerals that can form in the kidneys, also known as renal calculi. They can be made up of various types of crystals, with the most abundant crystal determining the ...

The renal or kidney medulla is the inner part of the kidney. The medulla helps regulate the concentration of urine by filtering out water, salts, and acid. The National Institute of Diabetes and ...

Kidney disease is common in adults, and testing for kidney disease is part of routine clinical practice for patients with acute or chronic illness. The initial evaluation includes determination of the ...