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.
Angiomyolipomas are the most common benign tumour of the kidney. Although regarded as benign, angiomyolipomas may grow such that kidney function is impaired or the blood vessels may dilate and burst leading to bleeding.
Angiomyolipomas are usually identified when the kidneys are being checked for some other condition. 1  The clinical presentation needing urgent investigation and treatment is spontaneous retroperitoneal hemorrhage. There are also instances of shock as a result of the hemorrhage of the vessels due to Angiomyolipoma.