Potassium metal was first isolated in 1807 in England by Sir Humphry Davy, who derived it from caustic potash (KOH, potassium hydroxide) by the use of electrolysis of the molten KOH with the newly discovered voltaic pile.
Definition of Angiomyolipoma of the Kidney. Angiomyolipoma of the kidney is a rare benign renal tumor with a high fat content. Epidemiology of Renal Angiomyolipoma. Prevalence: The prevalence in autopsies is 0.3%, with ultrasound screening 0.1%. Women are much more frequently affected than men.
angiopathy - any disease of the blood vessels or lymph ducts. 1  pathology - any deviation from a healthy or normal condition. 2  angioma - a tumor consisting of a mass of blood or lymphatic vessels. 3  angiitis - inflammation of a blood vessel or lymph duct.