Idiopathic intracranial hypertension




Idiopathic intracranial hypertension

Nervous system

Central nervous system disorders

Spina bifida

Chiari malformation

Dandy-Walker malformation


Tethered spinal cord syndrome

Aqueductal stenosis

Septo-optic dysplasia

Cerebral palsy

Spinocerebellar ataxia (NORD)

Transient ischemic attack

Ischemic stroke

Intracerebral hemorrhage

Epidural hematoma

Subdural hematoma

Subarachnoid hemorrhage

Saccular aneurysm

Arteriovenous malformation

Broca aphasia

Wernicke aphasia

Wernicke-Korsakoff syndrome

Kluver-Bucy syndrome

Concussion and traumatic brain injury

Shaken baby syndrome


Febrile seizure

Early infantile epileptic encephalopathy (NORD)

Tension headache

Cluster headache


Idiopathic intracranial hypertension

Trigeminal neuralgia

Cavernous sinus thrombosis

Alzheimer disease

Vascular dementia

Frontotemporal dementia

Lewy body dementia

Creutzfeldt-Jakob disease

Normal pressure hydrocephalus


Essential tremor

Restless legs syndrome

Parkinson disease

Huntington disease

Opsoclonus myoclonus syndrome (NORD)

Multiple sclerosis

Central pontine myelinolysis

Acute disseminated encephalomyelitis

Transverse myelitis

JC virus (Progressive multifocal leukoencephalopathy)

Adult brain tumors

Acoustic neuroma (schwannoma)

Pituitary adenoma

Pediatric brain tumors

Brain herniation

Brown-Sequard Syndrome

Cauda equina syndrome

Treponema pallidum (Syphilis)

Vitamin B12 deficiency


Friedreich ataxia

Neurogenic bladder


Neonatal meningitis


Brain abscess

Epidural abscess

Cavernous sinus thrombosis

Creutzfeldt-Jakob disease

Central and peripheral nervous system disorders

Sturge-Weber syndrome

Tuberous sclerosis


von Hippel-Lindau disease

Amyotrophic lateral sclerosis

Peripheral nervous system disorders

Spinal muscular atrophy


Guillain-Barre syndrome

Charcot-Marie-Tooth disease

Trigeminal neuralgia

Bell palsy

Winged scapula

Thoracic outlet syndrome

Carpal tunnel syndrome

Ulnar claw

Erb-Duchenne palsy

Klumpke paralysis


Myasthenia gravis

Lambert-Eaton myasthenic syndrome

Autonomic nervous system disorders

Orthostatic hypotension

Horner syndrome

Nervous system pathology review

Congenital neurological disorders: Pathology review

Headaches: Pathology review

Seizures: Pathology review

Cerebral vascular disease: Pathology review

Traumatic brain injury: Pathology review

Spinal cord disorders: Pathology review

Dementia: Pathology review

Central nervous system infections: Pathology review

Movement disorders: Pathology review

Neuromuscular junction disorders: Pathology review

Demyelinating disorders: Pathology review

Adult brain tumors: Pathology review

Pediatric brain tumors: Pathology review

Neurocutaneous disorders: Pathology review


Idiopathic intracranial hypertension


0 / 14 complete

USMLE® Step 1 questions

0 / 1 complete

High Yield Notes

4 pages


Idiopathic intracranial hypertension

of complete


USMLE® Step 1 style questions USMLE

of complete

A 25-year-old woman comes to the clinic because of recurrent, pulsating headaches and transient vision changes for the past week. She initially gained relief from taking non-steroidal anti-inflammatory medications, but they are no longer sufficient due to the worsening of her symptoms. Her current medications include the combined oral contraceptive pill and a tetracycline for acne. Her temperature is 37.2°C (98.9°F), pulse is 88/min, respirations are 12/min, and blood pressure is 138/82 mm Hg. Her BMI is 32 kg/m2. A focused neurological examination shows papilledema during fundoscopy, and testing of visual fields reveals some peripheral constriction. Magnetic resonance imaging is obtained and shows flattening of the posterior sclera and reduced soft tissue occupying the sella turcica. The brain parenchyma and ventricles appear normal. Which of the following is the most likely diagnosis?  

External References

First Aid








Acetazolamide p. 253, 573, 632

pseudotumor cerebri p. 540

Danazol p. 682

pseudotumor cerebri p. 540

Idiopathic intracranial hypertension p. 540

Pseudotumor cerebri p. 540

acetazolamide for p. 632

vitamin A toxicity p. 64

Tetracyclines p. 189

pseudotumor cerebri and p. 540


pseudotumor cerebri p. 539

Vitamin A (retinol) p. 63, 64

pseudotumor cerebri p. 539

Weight loss

pseudotumor cerebri treatment p. 540


Idiopathic intracranial hypertension (IIH) also known as pseudotumor cerebri, is a neurological condition characterized by an increased intracranial pressure, without evidence of a space-occupying lesion or hydrocephalus on brain imaging. It causes symptoms like headache, tinnitus, and visual disturbances like diplopia.


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