This case highlights the rare potential for atrial myxomas to metastasize to the temporal bone and cerebral vasculature.
Two metastases from an atrial myxoma occurred in the right common carotid artery distribution of a 34-year-old man. One metastasis caused the phenomenon of intracranial pseudoaneurysm in a distal branch of the middle cerebral artery. The other resulted in the unusual radiographic appearance of a tremendous, "bubbly" expansion of the temporal bone.
Jungreis et al. (Sun,) studied this question.