A 42-year-old woman with Graves disease presents to the physician after experiencing a seizure-type episode at home. ECG show irregularly irregular rhythm and absence of p-waves. Echocardiography shows normal chamber architecture and an ejection fraction of 56%. A head CT with contrast shows a ring-enhancing lesion.
Which of the following is the most likely explanation for this patient’s findings?
Amyloidosis
Cold abscess
Embolus
Glycosaminoglycan deposition
Malignancy
Neurocysticercosis
Toxoplasmosis
