coma cast

co·ma cast

a renal cast of strongly refracting granules said to be indicative of imminent coma in diabetes. Synonym(s): Külz cylinder

Külz,

Rudolph E., German physician, 1845-1895. Külz cylinder - a renal cast of strongly refracting granules said to be indicative of imminent diabetic coma. Synonym(s): coma cast