A corneal ulcer is an ocular emergency that raises high-stakes questions about diagnosis and management. Four corneal experts provide a guide to diagnostic differentiators and timely treatment, focusing on the types of ulcers most likely to appear in your waiting room. When a large corneal ulcer is staring you in the face, time is not on your side.
Siderosis, also called welder's lung, is a lung disease caused by breathing in iron or iron oxide dust. Siderosis is considered to be an occupational illness because people breathe in the iron dust at work. The condition usually shows up on X-rays as small, opaque spots on the worker's lungs.
Necrosis (from the Greek Î½Î­ÎºÏÏÏÎ¹Ï death, the stage of dying, the act of killing from Î½ÎµÎºÏÏÏ dead) is a form of cell injury which results in the premature death of cells in living tissue by autolysis.or this reason, it is often necessary to remove necrotic tissue surgically, a procedure known as debridement. Untreated necrosis results in a build-up of decomposing dead tissue and cell debris at or near the site of the cell death. A classic example is gangrene.