Search results
Results from the WOW.Com Content Network
Parinaud's syndrome is a cluster of abnormalities of eye movement and pupil dysfunction, characterized by: Paralysis of upwards gaze: Downward gaze is usually preserved. This vertical palsy is supranuclear , so doll's head maneuver should elevate the eyes, but eventually all upward gaze mechanisms fail.
Frequently, paralysis of upward gaze along with several ocular findings such as convergence retraction nystagmus and eyelid retraction also known as Collier's sign and Light Near Dissociation (pupil accommodates but doesn't react to light) are known collectively as Parinaud's syndrome [1] or Dorsal Mid-brain syndrome, are the only physical ...
A third cause of light-near dissociation is Parinaud syndrome, also called dorsal midbrain syndrome. This uncommon syndrome involves vertical gaze palsy associated with pupils that “accommodate but do not react." [5] The causes of Parinaud syndrome include brain tumors (pinealomas), multiple sclerosis and brainstem infarction.
26 pictures of skin rashes to help you identify your skin rash. ... Flea bites are usually seen on the lower legs around the ankles and feet, says Dr. Jacobs. ... In severe cases, rosacea can ...
Accommodative excess may be seen in the following conditions: [3] Hypermetropia : Young hypermetropes use excessive accommodation as a physiological adaptation in the interest of clear vision. Myopia : Young myopes performing excessive near work may also use excessive accommodation in association with excessive convergence.
For premium support please call: 800-290-4726 more ways to reach us
The two main types of human skin are: glabrous skin, the hairless skin on the palms and soles (also referred to as the "palmoplantar" surfaces), and hair-bearing skin. [3] Within the latter type, the hairs occur in structures called pilosebaceous units , each with hair follicle , sebaceous gland , and associated arrector pili muscle. [ 4 ]
Swelling of the skin Elephantiasis , often incorrectly called elephantitis , is the enlargement and hardening of limbs or body parts due to tissue swelling ( edema ). [ 1 ] [ 2 ] It is characterised by edema, hypertrophy , and fibrosis of skin and subcutaneous tissues, due to obstruction of lymphatic vessels ( lymphedema ). [ 2 ]