PMC9452806_01
Brain CT scan showed:. - Lesion of the right temporal lobe (blue arrow) spontaneously hyperdense in axial (A), coronal (B) and sagittal section (C) enhanced after contrast injection in axial section (D).. - Lesion of the right parieto-occipital region (orange arrow) spontaneously hyperdense in axial (E) and sagittal section (F) enhanced after contrast injection in axial section (G).
10.1177_11795476221121315-fig1.jpg
PMC9452806_01_10.1177_11795476221121315-fig1.jpg
fig1-11795476221121315
Brain MRI showed two extra-axial lesions of the right temporal lobe (blue arrow) and the right parieto-occipital region (orange arrow), in iso signal T2 (A: axial section), iso signal flair (B: coronal section), with loss zones of signal in T2* (C: axial section). It is in restricted diffusion (ADC low at 0.33 x 10-3mm2/s) in axial section (D), heterogeneously enhanced after injection of the gadolinium in axial (E) and sagittal (F) section.
10.1177_11795476221121315-fig2.jpg
PMC9452806_01_10.1177_11795476221121315-fig2.jpg
fig2-11795476221121315
A cerebral MRI showed an extra-axial process of the right temporal lobe, in iso signal T1, T2 and flair (Figure 2A and B), containing the zones with loss of signal in T2* (Figure 2C). It is in restricted diffusion (ADC low at 0.33 x 10-3 mm2/s) (Figure 2D), heterogeneously enhanced after injection of the gadolinium (Figure 2E and F), measuring: 48 x 10 x 50 mm3 (T x AP x H) with a bone signal abnormality and invasion of the right sigmoid sinus (right sigmoid sinus thrombosis) (Figure 3A, B and D).
Brain MRI in T1 fat sat after injection of gadolinium showed an invasion of the temporal process in the right sigmoid sinus responsible of the right sigmoid sinus thrombosis (red arrow), in axial (A), sagittal (B) and coronal (D) section.
10.1177_11795476221121315-fig3.jpg
PMC9452806_01_10.1177_11795476221121315-fig3.jpg
fig3-11795476221121315
It is in restricted diffusion (ADC low at 0.33 x 10-3 mm2/s) (Figure 2D), heterogeneously enhanced after injection of the gadolinium (Figure 2E and F), measuring: 48 x 10 x 50 mm3 (T x AP x H) with a bone signal abnormality and invasion of the right sigmoid sinus (right sigmoid sinus thrombosis) (Figure 3A, B and D).