The patient had no clinical features of von Hippel-Lindau disease and genetic testing for common mutations ruled out this disorder with 90% certainty. An area of increased signal enhancement in the medulla was noted, but had not changed over a 10-year period. These also excluded tumor recurrence or other gross intracranial pathology as a cause. A widened pulse pressure occurs when there is a large difference between. In this case, doctors may suspect third nerve palsy and would do a CT or MRI scan for diagnosis. Cushing’s triad consists of bradycardia (also known as a low heart rate ), irregular respirations, and a widened pulse pressure. In the light, the pupil that is bigger is usually the abnormal pupil. Critical Care published a study examining the relationship between the NPi and invasive intracranial pressure (ICP) in 54 patients with severe traumatic brain. ![]() Irregular pupil cycling can be suggestive of demyelinative optic neuropathy, and this was further ruled out by reviewing the multiple magnetic resonance imaging scans he had regularly after surgery. Cushing’s triad refers to a set of signs that are indicative of increased intracranial pressure (ICP), or increased pressure in the brain. The patient did not report altered sensation in the nasociliary distribution, deep tendon reflexes were preserved, Venereal Disease Research Laboratory test was negative, and cerebrospinal fluid opening pressure and constituents were also normal. There was no segmental paresis of the iris sphincter, and both constricted symmetrically to light ( video 1 available online at ) oculomotor function was normal and there was no ptosis. On examination, the right pupil was approximately 4 mm larger than the left. The Collaborative Community on Ophthalmic Imaging Unequal pupil size (anisocoria) can indicate a pathological process or neurological dysfunction.
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