Mechanical thrombectomy for cerebrovascular occlusion in a patient with situs inversus.

Situs inversus is a rare congenital abnormality characterized by mirror-image transposition of the major visceral organs and vessels. Few reports have discussed the use of mechanical thrombectomy in acute ischemic stroke with situs inversus. We present such a case, to raise awareness and deepen the knowledge on these cases. A 44-year-old man was admitted to our hospital with sudden-onset dysarthria and left-sided paresis. Computed tomography (CT) angiography revealed situs inversus and occlusion in the internal carotid artery. First, intravenous tissue plasminogen activator was administered, followed by immediate reperfusion with mechanical thrombectomy. We achieved thrombolysis in cerebral infarction grade 3. After the procedure, the patient fully recovered. Prompt diagnosis is crucial for rapid recanalization in patients with vascular anomalies such as situs inversus.