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Differential Diagnosis For Dilated pupil unilateral

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List of current finding(s):

Trauma Causes
Eye puncture/globe injury
Eyeball injury
Traumatic Brain Hemorrhagic Necrosis
Infectious Disorders (Specific Agent)
Fungus brain abscess
Infected organ, Abscesses
Brain abscess
Empyema, subdural
Epidural abscess
Neoplastic Disorders
Occipital lobe tumor
Metabolic, Storage Disorders
Diabetic third nerve mononeuropathy
Anatomic, Foreign Body, Structural Disorders
Acute subdural hematoma/hemorrhage
Epidural hematoma
Hematoma, subdural/acute
Subdural hematoma
Vitreous, hemorrhage
Brain stem herniation/peduncle/tonsils
Herniation temporal lobe/tentorum
Intracranial mass effect
Arteriosclerotic, Vascular, Venous Disorders
Cerebral hemorrhage
Retinal hemorrhage
Subarachnoid hemorrhage
Occipital lobe stroke
Retinal artery occlusion/branch
Retinal Artery Occlusion/Thrombosis
Reference to Organ System
Occipital lobe disorder/lesion
Third nerve palsy (oculomotor n.)
Drugs
Glutethimide (Doriden) Administration/Toxicity
Medrysone application/ophthalmic
Mydriatic ophthalmic application
Naphazoline (Privine) ophthalmic appl.
Synonyms
dilatation pupil, DILATATION PUPILLARY, Dilated pupil, Dilated pupil (finding), Dilated pupil function (observable entity), Dilated pupils, Dilation (Pupil), Large pupil, Large pupil (finding), MYDRIASIS, Mydriatic pupil, pupil dilatation, PUPIL DILATED, Pupil Dilation, PUPILLARY DILATION, Pupils dilated, Unilateral, Wide pupil
Definition

unilateral pupil dialation is a #1 neurologic emergency if it is w/in a certain time frame.. if it accompanies a ptosis ( third nerve palsy) , it can indicate a PCA (posterior communicating artery aneurysm). #2 a "lesion in the occipital lobe" as the optic tract transverses the occipatal lobe, although the ptosis is usually the first sign, followed by headaches and balance issues, the patient ultimately needs to go to the emergency room for an evaluation. sometimes it is chemical from certain drugs, and even diabetes. if the patient is having headaches or a single headache event that is more intense than the average headache, it could indicate a bleed in the subarachnoid space, especially if its the "the worst headache i ever had". regardless the patient needs a MRA!!! with speical sections thru the circle of willis / and MRI with and without contrast. a ct scan if an emergency is occuring and an maybe a cerebrel angiogram. a neurosurgeon should evaluate the patient at some point, if it is a surgical issue, or if there is doubt. if there is a head injury involved, the patient should be seen immedialtely,as this could be life or death. common sense also plays a role here to.

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External Links Related to Dilated pupil unilateral
Google
Wikipedia
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PubMed (National Library of Medicine)
NGC (National Guideline Clearinghouse)
Medscape (eMedicine)
Harrison's Online (accessmedicine)
NEJM (The New England Journal of Medicine)
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