PMC8769476_01
Irradiated areas of SRT in Cases 1 and 2. In Case 1, the first LINAC irradiation was targeted at the recurrent lesion facing the falx (A). The second LINAC irradiation was added to control the progression of the recurrent lesion in the left occipital lobe (B). In Case 2, the first gamma-knife surgery was performed for the recurrent lesion on the superior surface of the cerebellum (C). The second gamma-knife surgery was added for the recurrent lesion adjacent to the original location of the pineal region tumor and another lesion located in the left posterior area (D). SRT: stereotactic radiotherapy.
nmccrj-8-773-g001.jpg
PMC8769476_02_nmccrj-8-773-g001.jpg
F1
The detailed irradiation areas of SRT are shown in Fig. 1.
MR imaging findings of each patient. Axial T2-weighted image of Case 1 showing a radiation-induced cavernoma in the left occipital lobe (arrow). Axial T2-weighted images of Cases 2 and 4 showing left occipital cortical abnormalities, which implied the damage was caused by brain surgery for pineal tumor. Axial T2-weighted image of Case 3 showing diffuse brain atrophy probably due to radiotherapy. Susceptibility-weighted images of Case 5 (Case 5a and 5b) showing multiple microbleeds (arrowheads). MR: magnetic resonance.
nmccrj-8-773-g002.jpg
PMC8769476_05_nmccrj-8-773-g002.jpg
F2
Susceptibility-weighted MR imaging showed multiple microbleeds in the bilateral hemispheres (Fig. 2).
PMC8769476_02
Irradiated areas of SRT in Cases 1 and 2. In Case 1, the first LINAC irradiation was targeted at the recurrent lesion facing the falx (A). The second LINAC irradiation was added to control the progression of the recurrent lesion in the left occipital lobe (B). In Case 2, the first gamma-knife surgery was performed for the recurrent lesion on the superior surface of the cerebellum (C). The second gamma-knife surgery was added for the recurrent lesion adjacent to the original location of the pineal region tumor and another lesion located in the left posterior area (D). SRT: stereotactic radiotherapy.
nmccrj-8-773-g001.jpg
PMC8769476_02_nmccrj-8-773-g001.jpg
F1
The detailed irradiation areas of SRT are shown in Fig. 1.
MR imaging findings of each patient. Axial T2-weighted image of Case 1 showing a radiation-induced cavernoma in the left occipital lobe (arrow). Axial T2-weighted images of Cases 2 and 4 showing left occipital cortical abnormalities, which implied the damage was caused by brain surgery for pineal tumor. Axial T2-weighted image of Case 3 showing diffuse brain atrophy probably due to radiotherapy. Susceptibility-weighted images of Case 5 (Case 5a and 5b) showing multiple microbleeds (arrowheads). MR: magnetic resonance.
nmccrj-8-773-g002.jpg
PMC8769476_05_nmccrj-8-773-g002.jpg
F2
Susceptibility-weighted MR imaging showed multiple microbleeds in the bilateral hemispheres (Fig. 2).
PMC8769476_03
MR imaging findings of each patient. Axial T2-weighted image of Case 1 showing a radiation-induced cavernoma in the left occipital lobe (arrow). Axial T2-weighted images of Cases 2 and 4 showing left occipital cortical abnormalities, which implied the damage was caused by brain surgery for pineal tumor. Axial T2-weighted image of Case 3 showing diffuse brain atrophy probably due to radiotherapy. Susceptibility-weighted images of Case 5 (Case 5a and 5b) showing multiple microbleeds (arrowheads). MR: magnetic resonance.
nmccrj-8-773-g002.jpg
PMC8769476_05_nmccrj-8-773-g002.jpg
F2
Susceptibility-weighted MR imaging showed multiple microbleeds in the bilateral hemispheres (Fig. 2).
PMC8769476_04
MR imaging findings of each patient. Axial T2-weighted image of Case 1 showing a radiation-induced cavernoma in the left occipital lobe (arrow). Axial T2-weighted images of Cases 2 and 4 showing left occipital cortical abnormalities, which implied the damage was caused by brain surgery for pineal tumor. Axial T2-weighted image of Case 3 showing diffuse brain atrophy probably due to radiotherapy. Susceptibility-weighted images of Case 5 (Case 5a and 5b) showing multiple microbleeds (arrowheads). MR: magnetic resonance.
nmccrj-8-773-g002.jpg
PMC8769476_05_nmccrj-8-773-g002.jpg
F2
Susceptibility-weighted MR imaging showed multiple microbleeds in the bilateral hemispheres (Fig. 2).
PMC8769476_05
MR imaging findings of each patient. Axial T2-weighted image of Case 1 showing a radiation-induced cavernoma in the left occipital lobe (arrow). Axial T2-weighted images of Cases 2 and 4 showing left occipital cortical abnormalities, which implied the damage was caused by brain surgery for pineal tumor. Axial T2-weighted image of Case 3 showing diffuse brain atrophy probably due to radiotherapy. Susceptibility-weighted images of Case 5 (Case 5a and 5b) showing multiple microbleeds (arrowheads). MR: magnetic resonance.
nmccrj-8-773-g002.jpg
PMC8769476_05_nmccrj-8-773-g002.jpg
F2
Susceptibility-weighted MR imaging showed multiple microbleeds in the bilateral hemispheres (Fig. 2).