PMC3206365_01
Anteroposterior view of the right carotid angiography showing an aneurysm (arrow) at the bifurcation of the right middle cerebral artery.
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fig1
The angiography (Figure 1) showed an aneurysm at the right middle cerebral artery bifurcation.
Operative photography of the cyst and the aneurysm.
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During surgery (Figure 2), a 2 cm of diameter cyst with clots and citrine liquid, suggestive of cysticercus was found in the distal portion of the aneurysm.
(a) Histopathology of the aneurysm showing a coagulum near the rupture site without signs of inflammation (hematoxylin-eosin stain, original magnification x 6). (b) Histopathology of the excised cyst demonstrating its pathognomonic features of a viable cysticercus without signs of degeneration (Calleja's stain, original magnification x 6).
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fig3
Their histopathology proved to be a whole cysticercus (Figure 3(a)) and a broken aneurysm with a coagulum in formation (Figure 3(b)).
(a) CT scan with no contrast after surgery showing calcifications (arrows). (b) Cyst (arrow) enhanced after contrast. (R: right, L: left).
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Postoperative CTs showed multiple calcifications compatible with cysticercosis (Figure 4(a)) and cyst in the left Sylvian cistern, with discrete contrast retention (Figure 4(b)).