Improved Detection of Intraventricular Cysticercal Cysts with the Use of Three-dimensional Constructive Interference in Steady State MR Sequences
Srikanth Subbamma Govindappa
,a,
Jayakumar Peruvamba Narayanana,
Vasudev Mandapati Krishnamoorthya,
Chandrashekar Hoskote Shankar Shastrya,
Anandh Balasubramaniama and
Shankar Susarla Krishnaa
a From the Departments of Neuroimaging and Interventional Radiology (S.S.G., J.P.N., V.M.K., C.H.S.S.), Neurosurgery (A.B.), and Neuropathology (S.S.K.), National Institute of Mental Health and Neuro Sciences, Bangalore, India.
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FIG 1. A and B, Sagittal SE T1-weighted (650/14/1) (A) and axial T2-weighted (3800/90/2) (B) images show a dilated fourth ventricle (arrowheads). No cyst is seen.
C and D, Axial 3D-CISS (12.3/5.9/1) images show the cystic wall (arrows) and hypointense scolex (arrowhead ).
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FIG 2. A, Axial T1-weighted (650/14/1) image shows dilatation and distortion of the fourth ventricle with a hyperintense scolex (arrow).
B, On T2-weighted (3800/90/2) image, the internal details of the lesion are obscured by the surrounding hyperintense CSF.
C, Axial 3D-CISS (12.3/5.9/1) image shows a dilated fourth ventricle, within which the scolices (asterisk ) and wall (arrow ) of the cyst are clearly seen.
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FIG 3. A, Axial T1-weighted (650/14/1) image shows dilatation of the left lateral ventricle with subtle isointense lesion noted in the region of the foramen of Monro (arrow ).
B, On T2-weighted (3800/90/2) image, these findings are obscured.
C, Axial 3D-CISS (12.3/5.9/1) image shows the cysticercal lesion more precisely (arrowhead ).
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FIG 4. Whole-mount picture of the cysticercal cyst (arrowhead indicates the scolex). Note irregular invaginations of the cyst (hematoxylin-eosin, original magnification x30).
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