What question did this study set out to answer?

To explore the connection between reversible cerebral vasoconstriction syndrome (RCVS) and hyperthyroidism.

February 5, 2026Internal MedicineOpen Access

Reversible Cerebral Vasoconstriction Syndrome with Hyperthyroidism: A Case Report

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Case report reveals a link between hyperthyroidism and vasoconstriction syndrome in a 55-year-old woman, suggesting a significant association.

To explore the connection between reversible cerebral vasoconstriction syndrome (RCVS) and hyperthyroidism.
Case report of a 55-year-old woman
Laboratory investigations for thyroid function
Magnetic resonance imaging for cerebrovascular assessment
Diagnosis of RCVS and hyperthyroidism was confirmed
Patient experienced thunderclap headaches triggered by certain activities
MRI showed subarachnoid hemorrhage and cerebral vasospasm

Kudo et al. (2026) studied this question.

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Case report reveals a link between hyperthyroidism and vasoconstriction syndrome in a 55-year-old woman, suggesting a significant association.