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Delayed post-contrast fluid-attenuated inversion recovery image for depicting meningeal carcinomatosis

Department of Radiology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo, Kyoto, 602-8566, Japan

View larger version (236K): [in a new window]   Figure 1. (a) Axial unenhanced T1 weighted (590/15) [repetition time ms/echo time ms] and (b) T2 weighted (3500/120) images do not show any remarkable findings, except for hydrocephalus. (c) Axial early- and (d) delayed-enhanced T1 weighted (590/15) images obtained soon and 2 h after the intravenous administration of contrast materials, respectively, fail to demonstrate the presence of abnormal CSF or meningeal enhancement. (e) Axial early-enhanced FLAIR (8000/120/1900) [repetition time ms/ echo time ms/ inversion time ms] image obtained soon after the intravenous administration of contrast materials shows an abnormal hyperintensity in the anterior interhemispheric fissure (arrow) and the left inferior temporal sulci (open arrow). (f) Axial delayed-enhanced FLAIR (8000/120/1900) image obtained 2 h after the intravenous administration of contrast materials shows an apparent abnormal hyperintensity in the bilateral sylvian fissures (open arrows). The anterior interhemispheric fissure (arrow) and the left inferior temporal sulci (solid arrow) also show an abnormal hyperintensity on the delayed enhanced FLAIR image, when compared with the early-enhanced FLAIR image.