PMC7191402_01
MRI study with contrast documented the presence of expansive lesions and isointense on T1-weighted, and hyperintense on T2-weighted images, characterized by an intense post-contrastographic enhancement, with dural tail, located in the first case in the right frontal region (a) and in the second case in the left occipito-parietal region (b).
CRIM2020-2812487.001.jpg
PMC7191402_01_CRIM2020-2812487.001.jpg
fig1
An MRI study with contrast documented the presence of expansive lesions with surrounding edema and isointense on T1-weighted and hyperintense on T2-weighted images, characterized by an intense post-contrastographic enhancement, with dural implant, located in the first case in the right frontal region, and in the second case, in the left occipito-parietal region (Figure 1).
Intraoperative image of first case: the lesions, even though adherent to the dural structures, appeared with infiltrative characteristics, variable consistency (pseudofibrous shoots), intense vascularization, and bleeding.
CRIM2020-2812487.002.jpg
PMC7191402_01_CRIM2020-2812487.002.jpg
fig2
Intraoperatively, the lesions, even though adherent to the dural structures, appeared with infiltrative characteristics, variable consistency (pseudofibrous shoots), intense vascularization, and bleeding (Figure 2), but complete excision of tumor was performed in each case.
(a) MRI study with enhancement documented right fronto-parietal dural-based extra-axial mass causing moderate mass effect. The lesion was isointense on T1-weighted and hyperintense on T2-weighted images, with evidence of dural tail. (b) A mass reduction at CT-scan and MRI studies after 1 week of corticosteroid therapy.
CRIM2020-2812487.003.jpg
PMC7191402_01_CRIM2020-2812487.003.jpg
fig3
Imaging characteristics were consistent with right fronto-parietal convexity meningioma (Figure 3), but a mass reduction of the lesion at CT-scan after 1 week of corticosteroid therapy raised a doubt (Figure 3).
Right frontal craniotomy was performed with macroscopic excision of the tumor adherent to the dura with infiltrative characteristics a pseudofibrous consistency.
CRIM2020-2812487.004.jpg
PMC7191402_01_CRIM2020-2812487.004.jpg
fig4
Right frontal craniotomy was performed with macroscopic excision of the tumor adherent to the dura with infiltrative characteristics a pseudofibrous consistency (Figure 4).