TY - JOUR
T1 - Clinically silent choroid plexus cyst
T2 - Evaluation by diffusion-weighted MRI
AU - Kinoshita, Toshibumi
AU - Moritani, Toshio
AU - Hiwatashi, Akio
AU - Numaguchi, Yuji
AU - Wang, Henry Z.
AU - Westesson, Per Lennart A.
AU - Sugihara, Shuji
AU - Matsusue, Eiji
AU - Fujii, Shinya
AU - Ohama, Eisaku
AU - Ogawa, Toshihide
PY - 2005/4
Y1 - 2005/4
N2 - We retrospectively reviewed diffusion-weighted magnetic resonance images of 57 patients with a choroid plexus cyst diagnosed by contrast-enhanced T1-weighted imaging. All the cysts appeared to represent incidental findings. Thirty-eight of 57 patients had bilateral cysts and 19 had unilateral ones. On diffusion-weighted images, 78 of 95 cysts showed homogeneously high signal intensity, 12 showed focal high signal areas, and 5 had no portion with a high signal. The apparent diffusion coefficient of the high signal areas in the cysts was (1.46 ± 0.14)×10-3 mm2/s, intermediate between the apparent diffusion coefficients of cerebrospinal fluid and cerebral white matter, (3.15 ± 0.67) × 10-3 and (0.79 ± 0.22) × 10-3mm2/s, respectively. Pathological correlation was available in one case, showing high signal intensity areas in the glomera of the choroid plexuses in the lateral ventricles on diffusion-weighted images corresponding to gelatinous cysts with highly proteinaceous content.
AB - We retrospectively reviewed diffusion-weighted magnetic resonance images of 57 patients with a choroid plexus cyst diagnosed by contrast-enhanced T1-weighted imaging. All the cysts appeared to represent incidental findings. Thirty-eight of 57 patients had bilateral cysts and 19 had unilateral ones. On diffusion-weighted images, 78 of 95 cysts showed homogeneously high signal intensity, 12 showed focal high signal areas, and 5 had no portion with a high signal. The apparent diffusion coefficient of the high signal areas in the cysts was (1.46 ± 0.14)×10-3 mm2/s, intermediate between the apparent diffusion coefficients of cerebrospinal fluid and cerebral white matter, (3.15 ± 0.67) × 10-3 and (0.79 ± 0.22) × 10-3mm2/s, respectively. Pathological correlation was available in one case, showing high signal intensity areas in the glomera of the choroid plexuses in the lateral ventricles on diffusion-weighted images corresponding to gelatinous cysts with highly proteinaceous content.
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U2 - 10.1007/s00234-004-1327-7
DO - 10.1007/s00234-004-1327-7
M3 - Article
C2 - 15789202
AN - SCOPUS:20444500579
SN - 0028-3940
VL - 47
SP - 251
EP - 255
JO - Neuroradiology
JF - Neuroradiology
IS - 4
ER -