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Tumor Embolism Through Right-to-Left Shunt Due to Venous Invasion of Esophageal Carcinoma
A 69-year-old man was admitted to the hospital with right hemiparesis and global aphasia. Perfusion computed tomography imaging revealed ischemic penumbra in the middle cerebral artery territory. Angiography showed left middle cerebral artery occlusion. Mechanical thrombectomy with one pass was performed, and successful recanalization was obtained. Embolic material was retrieved; it contained tumor fragments with atypical keratinizing squamous cell carcinoma. Contrast computed tomography imaging indicated tumor invasion into the superior vena cava, and contrast transcranial Doppler indicated the presence of a right-to-left...
Source: Journal of Stroke and Cerebrovascular Diseases - October 1, 2020 Category: Neurology Authors: Suguru Araki, Kota Maekawa, Kazuto Kobayashi, Takanori Sano, Tadashi Yabana, Masunari Shibata, Fumitaka Miya Tags: Case Report Source Type: research

Gas Embolic Stroke Secondary to Bowel Infarction
A 69-year-old gentleman with metastatic esophageal adenocarcinoma presented with acute abdominal pain to the emergency medicine department and subsequently developed an acute left hemiplegia while in the resuscitation unit. An unenhanced computed tomography (CT) scan of the head showed right frontal cerebral gas emboli while an unenhanced CT scan of the abdomen and pelvis showed extensive portal venous gas and pneumatosis intestinalis, presumed secondary to bowel infarction.
Source: Journal of Stroke and Cerebrovascular Diseases - November 16, 2015 Category: Neurology Authors: Dhruv Parikh, Joe Joseph Leyon, Swarupsinh Chavda Tags: Case Studies Source Type: research