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A 65 year-old man presented with new onset atrial fibrillation and the acute loss of vision on the right side. He was treated with heparin and seven days later developed a headache, nausea and vomiting accompanied by a decreased level of alertness. |
| Hemorrhagic Transformation of an Ischemic Infarction. Axial CT scan at day 3. Note the well circumscribed hypodensity in the right occipital lobe, corresponding to the distribution of the right posterior cerebral artery. On day 7, note the large hemorrhage in the right occipital lobe, surrounded by some vasogenic edema. In this case, the patient presumably had an embolic infarction from the atrial fibrillation with the embolus occluding the left posterior cerebral artery. In some cases, ischemic infarcts may turn hemorrhagic, with or without anticoagulation. |
Revised
11/15/06.
Copyrighted 2006. David C Preston