Hemorrhagic transformation after acute ischemic stroke caused by polycythemia vera: Report of two case

Figure 1 A 57-year-old woman with hemorrhagic infarction due to polycythemia vera. A: Computed tomography (CT) showed patchy high-density changes in right parietal low-density lesions; B and C: Diffusion-weighted imaging showed acute ischemia in the right parietal and occipital lobes; D: CT-angiography showed mild atherosclerosis; E: Magnetic resonance venogram was unremarkable; F: CT re-examination after 1 wk demonstrated the resolution of hemorrhage within the infarction lesion.

Figure 2 A 68-year-old man with parenchymal hematomas after acute ischemic stroke caused by polycythemia vera. A: Computed tomography (CT) revealed right parietal and temporal lobe infarction; B: CT re-examination after 3 d revealed a hematoma within the infarct lesion of the right cerebral hemisphere.