Define tranche. tranche synonyms, tranche pronunciation, tranche translation, English dictionary definition of tranche. n. 1. A portion of a total, especially of a block of assets such as cash or securities: the riskiest tranche of the bond offering; money delivered in two...
A boil is a red, swollen, painful bump under the skin. It often looks like an overgrown pimple. Boils are often caused by infected hair follicles. Bacteria from the infection form an abscess, or pocket of pus. A boil can become large and cause severe pain. Boils most often happen where there is hair and rubbing. The face, neck, armpits, breasts, groin, and buttocks are common sites.
They then spread to the kidney, and to the area around the kidney. Surgery in the urinary tract or reproductive system and a bloodstream infection can also lead to a perirenal abscess. The biggest risk factor for perirenal abscess is kidney stones, by blockage of urine flow.