Thyroid Steal Syndrome Secondary to Active Hyperthyroid State

Harrison Humphries; Johnathon Chung; Reza Pirzadeh; Wesley Jones; Mohamad Ezzeldin

doi:10.7759/cureus.22529

Thyroid Steal Syndrome Secondary to Active Hyperthyroid State

Cureus. 2022 Feb 23;14(2):e22529. doi: 10.7759/cureus.22529. eCollection 2022 Feb.

Authors

Harrison Humphries¹, Johnathon Chung¹, Reza Pirzadeh¹, Wesley Jones², Mohamad Ezzeldin³

Affiliations

¹ Internal Medicine, HCA Houston Healthcare Kingwood/University of Houston College of Medicine, Kingwood, USA.
² Neurological Surgery, HCA Houston Healthcare Kingwood/University of Houston College of Medicine, Kingwood, USA.
³ Interventional Neuroradiology, HCA Houston Healthcare Kingwood/University of Houston College of Medicine, Kingwood, USA.

Abstract

Thyroid steal syndrome (TSS) is a rare condition characterized by recurrent transient ischemic attack (TIA) that is found to be due to a large thyroid goiter or thyroid hormone derangement causing a diversion of blood flow from the cerebral circulation. Here we report a patient with a history of multiple TIAs thought initially to be due to intracranial arterial stenosis based on CT angiography (CTA) findings, but later found to be secondary to hyperthyroid state causing TSS. To our knowledge, this is the first-ever reported case of TSS secondary to hyperthyroidism and only the second case of TSS secondary to any thyroid hormone derangement.

Keywords: conventional cerebral angiogram; ct angiogram; ct head angiogram; digital subtraction angiography(dsa); hyperthyroidism; thyroid steal; thyroid steal syndrome; tia.

Publication types

Case Reports