Category: L

  • Loffler’s endocarditis

    Endocarditis associated with hypereosinophilia and fibroplastic thickening of the endocardium.  

  • Locus ceruleus

    A central nervous system nucleus on either side of the midline under the fourth ventricle in the pontine part of the brainstem. This small nucleus contains pigmented neurons that send noradrenergic axons unusually widely, throughout the brain, and may play a key role in broad cortical activation from the reticular formation of the brainstem. A…

  • Locoweed

    A poisonous plant from the bean family that causes behavioral, visual, and gait disturbances, usually in cattle.  

  • Locked-in state

    A paralytic condition, superficially resembling coma, in which a person has no voluntary control over somatic muscles but nonetheless remains awake and alert. The locked-in state is usually the result of a lesion of the brainstem, especially the pons. Because in some patients eye blinking is  reserved, communication with locked-in patients is occasionally possible.  

  • Lochia serosa

    A thin, watery postpartum vaginal discharge.  

  • Lochia cruenta

    The bloody postpartum vaginal discharge.  

  • Lochia alba

    The white postpartum vaginal discharge that is no longer blood-tinged.  

  • Locator

    A device for locating or discovering an object such as a foreign body.  

  • Local reaction

    A reaction occurring at the point of stimulation or injection of foreign substances. The symptoms or changes that appear at the location where a triggering substance is applied.  

  • Local radiation injury

    An acute radiation exposure involving a limited part of the body, especially the hands, after picking up an unshielded radioactive element. The exposure usually results in delayed skin damage and frequently in underlying tissue injury. It may require local wound care, debridement, or in some instances amputation.