Hemorrhagic stroke differential diagnosis

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Differential diagnosis

It is clinically difficult to distinguish an ICH from an ischemic stroke. However, the symptoms like headache, nausea, vomiting, and depressed level of consciousness should raise the suspicion for a hemorrhagic event compared to ischemic stroke.[1][2]

Disease Findings
Ischemic stroke
  • Occurs when a clot or a mass clogs a blood vessel and cutting off the blood flow to the brain
  • Present as a
    • Thrombotic stroke (thrombus develops at the clogged part of the vessel)
    • Embolic strokes (blood clot that forms at another locations usually the heart and large arteries of the upper chest and neck, and travels to the brain)
  • Urgent evaluation with brain / neurovascular imaging (such as MRI, CT, CTA, MRA), cardiac, and metabolic evaluation is often necessary
transient ischemic attack (TIA)
  • Caused by a temporary clot which often called a “mini stroke”
  • Occurs rapidly and presents as a sudden onset of a focal neurologic symptom/sign lasting less than 24 hours
  • Urgent evaluation with brain / neurovascular imaging (such as MRI, CT, CTA, MRA), cardiac, and metabolic evaluation is often necessary
Acute hypertensive crisis/Malignant hypertension
  • Presents as significantly elevated blood pressure (systolic pressure ≥180 and/or diastolic pressure ≥120 mmHg) with or wihout acute end-organ injury
  • Urgent evaluation with MRI and CT of the brain, serum creatinine, urinalysis, cardiac (EKG, chest x ray, and cardiac enzymes) and metabolic evaluation is often necessary
Sentinel headache[3]
  • Caused by small aneurysmal leaks into the subarachnoid space
  • Presents as a episode of headache similar to that accompanying subarachnoid hemorrhage (days to weeks prior to aneurysm rupture) and focal neurologic symptoms and signs are usually absent
Sinusitis
  • Presents with acute and subacute headaches and facial pain
Hypoglycemia
Pituitary apoplexy[4]
  • Caused by pituitary gland infarct or hemorrhage secondary to pitutiery adenoma
  • Presents with acute headache, change in mental status, ophthalmoplegia, and decreased visual acuity
    • Brain CT and MRI are the preferred imaging techniques
Cerebral venous thrombosis[5][6]
  • Presents with isolated gradual onset headache or in combination with papilledema, seizures, bilateral focal deficits, and change in mental status
  • Brain MRI with venography should be considered
Colloid cyst of the third ventricle[7]
  • Caused by an acute obstructive hydrocephalus secondary to sudden obstruction in cerebrospinal fluid flow by the cyst
  • Presents with an acute onset fronto-parietal or fronto-occipital headache which relieved by taking the supine position and may be associated with nausea, vomiting, mental status changes, seizures, coma
  • Head CT or MRI of the brain are usually diagnostic
Cervical artery dissection[8][9]
  • It usulay occurs spontaneously or after head and neck injury
  • Presents with gradual onset head and neck pain with a local manifestations (such as Horner syndrome, pulsatile tinnitus, bruit, or cranial neuropathies)
  • Neuroimagings are usually preferred (brain MRI with MRA and cranial CT with CTA)
Reversible cerebral vasoconstriction syndrome
  • Occurs spontaneously and trigerred by sexual activity, exertion, emotion, and constriction of the cerebral arteries
  • Presents with acute severe headache with or without focal deficits or seizures that resolves spontaneously within 12 weeks
Spontaneous intracranial hypotension[10][11]
  • Presents with orthostatic headaches, nausea, vomiting, dizziness, diplopia, interscapular pain
  • Caused by cerebrospinal fluid (CSF) leakage from spinal meningeal defects or dural tears
  • Brain MRI is the preferred imaging techniques


Differential Disease Symptoms Signs Laboratory findings Diagnostic modality Management
Thunderclap headache Sentinel headache[3] Absent of focal neurologic symptoms and signs Absent of focal neurologic signs
Pituitary apoplexy[4] Acute headache

Change in mental status

Decreased visual acuity

Ophthalmoplegia

Brain CT and MRI are the preferred imaging techniques
Cerebral venous thrombosis[5][6] - Brain MRI with venography should be considered
Colloid cyst of the third ventricle[7] - Head CT or MRI of the brain are usually diagnostic
Cervical artery dissection[8][9] - Brain MRI with MRA and cranial CT with CTA)
Reversible cerebral vasoconstriction syndrome -
Spontaneous intracranial hypotension[10][11] Brain MRI is the preferred imaging techniques
Stroke Ischemic stroke
transient ischemic attack (TIA)
Infection Sinusitis
Others Hypoglycemia Headache,

Loc

Abnormal sensation

Palpitations, sweating, dizziness

Speech difficulty

Gait abnormality

Low blood glucose

Electrolyte imbalance

Acute hypertensive crisis/Malignant hypertension Urgent evaluation of serum creatinine, urinalysis, metabolic and cardiac evaluation (EKG, chest x ray, and cardiac enzymes) Urgent evaluation with MRI and CT of the brain
Brain tumor[12] Headache Cachexia Sensory and motor deficit, Gait abnormality and speech difficulty


Diseases Diagnostic tests Physical Examination Symptoms Past medical history Other Findings
Na+, K+, Ca2+ CT /MRI CSF Findings Gold standard test Motor Deficit Sensory deficit Speech difficulty Gait abnormality Cranial nerves Headache LOC Motor weakness Abnormal sensations
Brain tumour[12] Cancer cells[13] MRI Cachexia
Hemorrhagic stroke Xanthochromia[14] CT scan without contrast[15][16] Hypertension Neck stiffness
Subdural hemorrhage CT scan without contrast[15][16] Trauma/fall Confusion, dizziness, nausea, vomiting
Neurosyphilis[17][18] Leukocytes and protein CSF VDRL-specifc

CSF FTA-Ab -sensitive[19]

STIs Blindness, confusion, depression,

Abnormal gait

Complex or atypical migraine Clinical assesment Family history of migraine Presence of aura, nausea, vomiting
Conversion disorder Diagnosis of exclusion Tremors, blindness, difficulty swallowing
Electrolyte disturbance or Depends on the cause Confusion, seizures
Meningitis or encephalitis Leukocytes,

Protein

↓ Glucose

CSF analysis[20] Fever, neck

rigidity

Multiple sclerosis exacerbation CSF IgG levels

(monoclonal bands)

Clinical assesment and MRI [21] History of relapses and remissions Blurry vision, urinary incontinence, fatigue
Seizure ↓ or Clinical assesment and EEG [22] Previous history of seizures Confusion, apathy, irritability,
Hypoglycemia or hyperglycemia ↓ or Serum blood glucose

HbA1c

History of diabetes Palpitations, sweating, dizziness

Hemorrhagic stroke must be differentiated from other causes of headache, seizures and loss of consciousness.

Diseases Symptoms Physical Examination Past medical history Diagnostic tests Other Findings
Headache LOC Motor weakness Abnormal sensory Motor Deficit Sensory deficit Speech difficulty Gait abnormality Cranial nerves CT /MRI CSF Findings Gold standard test
Meningitis + - - - - + + - - History of fever and malaise - Leukocytes,

Protein

↓ Glucose

CSF analysis[20] Fever, neck

rigidity

Encephalitis + + +/- +/- - - + +/- + History of fever and malaise + Leukocytes, ↓ Glucose CSF PCR Fever, seizures, focal neurologic abnormalities
Brain tumor[12] + - - - + + + - + Weight loss, fatigue + Cancer cells[13] MRI Cachexia, gradual progression of symptoms
Hemorrhagic stroke + + + + + + + + - Hypertension + - CT scan without contrast[15][16] Neck stiffness
Subdural hemorrhage + + + + + - - - + Trauma, fall + Xanthochromia[14] CT scan without contrast[15][16] Confusion, dizziness, nausea, vomiting
Neurosyphilis[17][18] + - + + + + - + - STIs + Leukocytes and protein CSF VDRL-specifc

CSF FTA-Ab -sensitive[19]

Blindness, confusion, depression,

Abnormal gait

Complex or atypical migraine + - + + - - + - - Family history of migraine - - Clinical assesment Presence of aura, nausea, vomiting
Hypertensive encephalopathy + + - - - - + + - Hypertension + - Clinical assesment Delirium, cortical blindness, cerebral edema, seizure
Wernicke’s encephalopathy - + - - - + + + + History of alcohal abuse - - Clinical assesment and lab findings Ophthalmoplegia, confusion
CNS abscess + + - - + + + - - History of drug abuse, endocarditis, immunosupression + leukocytes, glucose and protien MRI is more sensitive and specific High grade fever, fatigue,nausea, vomiting
Drug toxicity - + - + + + - + - - - - Drug screen test Lithium, Sedatives, phenytoin, carbamazepine
Conversion disorder + + + + + + + + History of emotional stress - - Diagnosis of exclusion Tremors, blindness, difficulty swallowing
Metabolic disturbances (electrolyte imbalance, hypoglycemia) - + + + + + - - + - - Hypoglycemia, hypo and hypernatremia, hypo and hyperkalemia Depends on the cause Confusion, seizure, palpitations, sweating, dizziness, hypoglycemia
Multiple sclerosis exacerbation - - + + - + + + + History of relapses and remissions + CSF IgG levels

(monoclonal bands)

Clinical assesment and MRI [21] Blurry vision, urinary incontinence, fatigue
Seizure + + - - + + - - + Previous history of seizures - Mass lesion Clinical assesment and EEG [22] Confusion, apathy, irritability,


References

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