Isolated Posteroinferior Cerebellar Artery Dissection Diagnosed by High-Resolution Vessel Wall MRI

Hea Ree Park, Jaechun Hwang, Ye Sel Kim, Juhyeon Kim, Hyunjin Jo, Young Hee Jung, Jihoon Cha, Sung Tae Kim, Gyeong-Moon Kim
2016 Journal of the Korean Neurological Association  
Arterial dissection is an important cause of stroke. We report two cases of isolated posterior inferior cerebellar artery (PICA) dissection diagnosed by high-resolution vessel-wall MRI (HRVW-MRI). One subject complained of abrupt-onset vertigo and headache, and the other subject had headache, vertigo, and Horner syndrome. Conventional MRA showed only focal dilatation of the PICA, but HRVW-MRI revealed intramural hematoma and double-lumen contour in the PICA, suggesting arterial dissection. We
more » ... al dissection. We suggest that the use of HRVW-MRI should be considered when diagnosing isolated PICA dissection in a PICA infarct with an unknown cause.
doi:10.17340/jkna.2016.3.7 fatcat:uu5rmtlf3zaz3mu3xdu4nvgb2a