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.
Back to TopCauses. Epidural abscess is a rare disorder caused by infection in the area between the bones of the skull or spine, and the membranes covering the brain and spinal cord (meninges). This infection is called an intracranial epidural abscess if it is inside the skull area, or a spinal epidural abscess if it is found in the spine area.