Category: L

Any virus that, after infecting a cell, lyses it.  

A virus that has the ability to infect the host, initially causing little or no evidence of illness but persisting for the lifetime of the infected individual; later on, a specific triggering mechanism may cause the virus to produce a clinically apparent disease. This occurs with herpes simplex virus that remains latent in sensory ganglia…

Vertigo and fainting during a coughing spell in patients with chronic bronchitis.  

An out-of-date term for Meniere’s disease. Vertigo linked to labyrinth disorders. Vertigo related to disturbances in the inner ear labyrinth.  

The cavity in each cerebral hemisphere that communicates with the third ventricle through the interventricular foramen. It consists of a triangular central body and four horns, two inferior and two posterior.  

An experimental technique used in treating premature infants with surfactant-deficient lungs. It is rarely used.  

A vasculitis with blood clotting that affects small blood vessels in the skin, esp. near the feet and ankles. The cause in most cases is unknown, but it may be associated with diseases such as antiphospholipid antibody syndrome, systemic lupus erythematosus or scleroderma.  

Dilatation of a lymphatic vessel.  

The resection of tissue by converting it to gas with laser energy.  

A vaccine that uses as an antigen either the outer surface protein (OspA) of Borrelia burgdorferi (the spirochete that causes Lyme disease) or the decorin protein of the same microbe. Lyme vaccine is available in the U.S. for veterinary use only.