case_images: PMC8138253_01
case_images: MRI showing the right cerebellum space-occupying lesion on T1-weight image.
case_images: crn-0013-0259-g01.jpg
case_images: PMC8138253_01_crn-0013-0259-g01.jpg
case_images: F1
case_images: A brain magnetic resonance imaging (MRI) scan revealed a 5.1 x 4.1 x 2.6 cm homogeneous mass located in the right cerebellum (Fig. 1).
case_images: Tumor cells showing diffuse immunohistochemical positivity for CD-99.
case_images: crn-0013-0259-g02.jpg
case_images: PMC8138253_01_crn-0013-0259-g02.jpg
case_images: F2
case_images: Postoperative pathological report suggested a malignant solitary fibrous tumor, the tumor cells were positive for Vimentin, CD99 (Fig. 2), bcl-2 (Fig. 3) and CD34 (Fig. 4), EMA, S100 and GFAP were negative.
case_images: Tumor cells showing diffuse immunohistochemical positivity for CD-34.
case_images: crn-0013-0259-g04.jpg
case_images: PMC8138253_01_crn-0013-0259-g04.jpg
case_images: F4
case_images: Postoperative pathological report suggested a malignant solitary fibrous tumor, the tumor cells were positive for Vimentin, CD99 (Fig. 2), bcl-2 (Fig. 3) and CD34 (Fig. 4), EMA, S100 and GFAP were negative.
case_images: Ki-67 immunostaining showed a 30% proliferative index.
case_images: crn-0013-0259-g05.jpg
case_images: PMC8138253_01_crn-0013-0259-g05.jpg
case_images: F5
case_images: Ki-67 immunostaining showed a 30% proliferative index (Fig. 5).
case_images: Histological examination showed that the tumor was composed of spindle cells (H&E staining).
case_images: crn-0013-0259-g06.jpg
case_images: PMC8138253_01_crn-0013-0259-g06.jpg
case_images: F6
case_images: Histological examination showed that the tumor was composed of spindle cells (Fig. 6).
case_images: MRI showed that the tumor was completely removed.
case_images: crn-0013-0259-g07.jpg
case_images: PMC8138253_01_crn-0013-0259-g07.jpg
case_images: F7
case_images: Three months after the operation, MRI showed that the tumor was completely removed and no recurrence was found (Fig. 7).