PMC2808618_01
Preoperative computed tomographic scan demonstrating only asymmetry of the lateral ventricles, with enlargement of the right lateral ventricle.
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F1
Computed tomographic (CT) scans demonstrated only asymmetry of the lateral ventricles, with enlargement of the right lateral ventricle (Fig. 1).
Preoperative MR images demonstrate a large cystic lesion occupying almost completely the enlarged right lateral ventricle with CSF-like signal intensity and a unilateral right-sided hydrocephalus with deviation of the septum pellucidum to the left. (A) T2-weighted axial image. (B) T1-weighted coronal image.
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F2
The cyst contents had the same signal intensity as cerebrospinal fluid (CSF) on MRI (Fig. 2).
(A) Intraoperative image reveals whitish wall of cyst obstructing the right foramen of Monro completely. (B) After the midportion of the cyst wall above the foramen of Monro was fenestrated, cystic fluid was expelled.
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F3
A 2.7 mm rigid telescope was introduced, and the cyst wall obstructing the right foramen of Monro was identified (Fig. 3A). With microscissors and forceps, the cyst wall was opened as widely as possible (Fig. 3B).
Gross photographic finding of extracted choroid plexus cyst.
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F4
The cyst was removed totally with no resistance (Fig. 4).
Photomicrographs. Staining of the cyst lining shows a low cuboidal epithelium with a subadjacent collagenous wall. The morphological feature of the epithelium is consistent with choroid epithelium (H&E, x200).
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F5
The appearance was that of choroid plexus neuroepithelial cells (Fig. 5).
A CT scan obtained 14 days after endoscopic removal of the cyst reveals decreased right lateral ventricle.
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F6
A CT scan performed 14 days after endoscopic removal of the cyst showing no intraventricular hemorrhage (Fig. 6).