Pupil-sparing isolated inferior rectus paresis due to compression of the oculomotor nerve by the posterior cerebral artery.

Direct compression of the oculomotor nerve (OcN) is usually accompanied by OcN palsy (OcNP), with an abnormal pupillary function. We herein present the case of a 76-year-old man with pupil-sparing paresis of the right inferior rectus muscle. A radiological examination revealed an epidermoid cyst at the right cerebellopontine angle, which came in contact with the right oculomotor nerve.

Technique for Recanalization of Sheath Introducer Occlusion due to Captured Thrombus during Mechanical Thrombectomy for Acute Ischemic Stroke: A Technical Note.

Objective: Mechanical thrombectomy (MT) is the gold standard treatment for acute ischemic stroke. During these interventions, a thrombus frequently obstructs a guiding catheter. The obstructed guiding catheter should be withdrawn before distal embolism occurs; however, albeit infrequently, the thrombus occludes even a sheath introducer (SI).