Category: V

  • Vinca

    A genus of herbs including periwinkles, from which vincristine and vinblastine are obtained.  

  • Villusectomy

    Surgical removal of a synovial villus.  

  • Villosity

    The condition of being covered with villi.  

  • Villaret’s syndrome

    Ipsilateral paralysis of the 9th, 10th, 11th, 12th, and sometimes the 7th cranial nerves and the cervical sympathetic fibers. It is caused by a lesion in the posterior retro-parotid space. The signs and symptoms include paralysis and anesthesia of the pharyngeal area with difficulty swallowing; loss of taste sensation in the posterior third of the…

  • Vignetting

    In radiology, a loss in brightness and focus toward the periphery of the output phosphor during image intensification.  

  • Vigilance

    The condition of being attentive, alert, and watchful.  

  • Vigilambulism

    Automatism that occurs while the person is awake; resembles somnambulism.  

  • View box

    A device made of lights placed behind a translucent screen and used to provide backlighting for a radiographic image. It helps clinicians see the brightness, contrast, and details of an image. Also known as an illuminator.  

  • View

    A body part as seen by an x-ray film or other recording medium.  

  • Vidian nerve

    A branch from the sphenopalatine ganglion.