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.
From Wikipedia, the free encyclopedia. An adenoma (from Greek Î±Î´Î­Î½Î±Ï, adeno- , gland + -ÏÎ¼Î±, -oma, tumor) (/ËaedÉ¨ËnoÊmÉ/ ; ËÃ¦dÉ¨ËnoÊmÉ plural adenomas or /adenomata/) ËaedÉ¨ËnoÊmÉ¨tÉ ËÃ¦dÉ¨ËnoÊmÉ¨tÉ is a benign tumor of epithelial tissue with, glandular origin, glandular characteristics. or bothome adenomas grow from epithelial tissue in nonglandular areas but express glandular tissue structure (as can happen in familial polyposis coli). Although adenomas are benign, over time they may transform to become malignant, at which point they are called adenocarcinomas. Most adenomas do not transform.