Medical Definition of NEPHRECTOMY. : the surgical removal of a kidney.â neÂ·phrecÂ·toÂ·mize \-ËmÄ«z\ transitive verb.edical Definition of NEPHRECTOMY. : the surgical removal of a kidney.
Scleritis is an uncommon disease and is differentiated from episcleritis, which is a more common ocular condition. In episcleritis, only the superficial tissue between the white of the eye (sclera) and the blood vessel-filled covering (conjunctiva) is inflamed. Scleritis is an inflammation of the white of the eye. 2  It is serious eye disease which is often associated with underlying autoimmune disorders. 3  Prompt diagnosis and treatment is essential in preventing permanent vision loss.
There are two main types of scleritis: anterior and posterior. Scleritis is categorized depending on what part of the eye is affected. Anterior Scleritis. Anterior scleritis can be further divided into the following three types: Diffuse Scleritis: The most common type of scleritis, involving the front half of the sclera. Nodular Scleritis: Small, tender nodules form on the sclera, representing generalized inflammation. Necrotizing Scleritis: Also known as scleromalacia perforans, this type can be very serious and may result in loss of vision.