PMC5551293_01
No contrast CT scan showing two ventricular catheters, each in one of the frontal horns collapsing both ventricles. The left temporal horn is isolated and dilated remarkably with perilesional edema
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F1
Brain computed tomography (CT) scan showed cystic dilatation of left temporal horn surrounded by perilesional edema [Figure 1].
Hypointense cystic lesion in axial and coronal T1 weighted MRI (a and b); hyperintense cystic lesion with massive edema in axial and coronal T2 weighted MRI (c and d); rim enhancing lesion in axial and coronal contrast-T1 weighted MRI (e and f). (Sagittal views not included due to bad quality)
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F2
There was cystic expansion of the left temporal horn with fine wall enhancement and perilesional edema [Figure 2].
Surgical view of left temporal lobe with the exposed temporal horn (yellow arrow) containing the cystic lesion at superior border (white arrow) and velvety debris along the ependymal layer
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F3
Entering the dilated/isolated temporal horn, nests of shiny debris infiltrating the ependymal layer of the dilated horn could be stripped off and removed as much as possible [Figure 3].
(a and b) Large lymphoid cells with variation in size and shape (black arrows), multilobulated nuclei, large atypical lymphoid cell with prominent multilobulated nuclei (asterisk), (c) necrotic tissue with ghost cells (blue arrows). CD10 and CD20 was positive in immunohistochemistry
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F4
Pathology report confirmed the diagnosis of DLBCL [Figure 4].