Neuroimaging and Diagnostic Evaluation for Paresthesia, Cephalalgia, and Hypertension

Initial Evaluation

• The American College of Radiology recommends brain MRI with and without contrast to evaluate for structural abnormalities, signs of increased intracranial pressure, and to exclude secondary causes of headache 1
• The American College of Radiology suggests MRV (Magnetic Resonance Venography) of the head to rule out cerebral venous thrombosis, especially given the whole-body paresthesia and persistent headache 2
• The European Heart Journal recommends 24-hour ambulatory blood pressure monitoring to characterize the pattern and severity of hypertension 3, 4
• The American Heart Association recommends 12-lead ECG to assess for cardiac abnormalities and evaluate for potential cardiac cephalgia 3
• The American College of Cardiology recommends echocardiogram to evaluate for structural heart disease that could contribute to hypertension 3

Laboratory Testing

• The American Heart Association recommends complete metabolic panel including electrolytes, renal function (creatinine, eGFR), and liver function tests 3
• The American College of Physicians recommends complete blood count to evaluate for anemia or other hematologic abnormalities 3
• The Endocrine Society recommends thyroid function tests (TSH, free T4) given the patient's fatigue, weight gain, and constipation 3
• The American Heart Association recommends urinalysis with urine albumin/creatinine ratio to assess for renal involvement 3
• The American College of Cardiology recommends lipid profile and fasting glucose to evaluate for metabolic risk factors 3

Rationale for Urgent Neuroimaging

• Cerebral Venous Thrombosis (CVT) is a concern due to the combination of whole-body paresthesia, persistent headache, and elevated blood pressure, requiring prompt diagnosis and treatment 2

Specific Concerns and Management Considerations

• The American Heart Association recommends evaluating medication interactions, particularly the combination of oral contraceptives and IUD 3
• The American College of Radiology suggests that whole-body paresthesia with oral involvement suggests a central neurological process rather than a peripheral one 1
• The American Academy of Ophthalmology recommends evaluating for cranial neuropathy 6, 7, 8

Warning Signs Requiring Immediate Attention

• The American Heart Association recommends immediate attention for blood pressure >180/110 mmHg (hypertensive emergency) 5
• The American College of Radiology recommends immediate attention for new focal neurological deficits 1