Classic sign:
- Ipsilateral pupillary dilation associated with contralateral hemiparesis
Pathophysiology:
- Supratentorial mass effect (e.g. epidural hematoma from a MMA lesion due to temporal bone #)
- Herniation of the uncus of the temporal lobe through the tentorial hiatus pushing against the midbrain affecting the reticular system (affecting GCS), the corticospinal tract in the midbrain (contralateral hemiparesis), and the nearby oculomotor nerve (parasympathetic surface fiber impairment causes ipsilateral blown pupil)
Content on this page has not been checked for accuracy. The author's credentials have not been confirmed. Always use multiple peer-reviewed scholarly sources and good clinical judgement in your decision making.
The Compendium platform was created by David Kwinter, MD, CCFP(EM).
Dr. Kwinter is a Cayman Family Doctor. He runs a Family Medicine Clinic at Cayman Medical in George Town, Grand Cayman, Cayman Islands.
Dr. Kwinter is a Cayman Family Doctor. He runs a Family Medicine Clinic at Cayman Medical in George Town, Grand Cayman, Cayman Islands.