case_images: PMC9168305_01
case_images: Preoperative MRI demonstrating a sharply margined extra-axial temporal mass with relatively homogeneous contrast-enhancement and extends to the sella turcica and the sub-temporal fossa (a) T1-weighted image (arrow), (b-d) T1-weighted image with gadolinium contrast on transverse, coronal, and sagittal section, and (e) T2-weighted image (arrow).
case_images: SNI-13-224-g001.jpg
case_images: PMC9168305_01_SNI-13-224-g001.jpg
case_images: F1
case_images: The lesion was strongly enhanced after the injection of gadolinium [Figure 1].
case_images: Dense lymphoplasmocytic infiltrate (a: Hematoxylin and Eosin x100; b: Hematoxylin and Eosin x400).
case_images: SNI-13-224-g002.jpg
case_images: PMC9168305_01_SNI-13-224-g002.jpg
case_images: F2
case_images: Histological examination showed dense lymphoidplasmacytic infiltrate with storiform fibrosis [Figures 2 and 3].
case_images: Storiform fibrosis (Hematoxylin and Eosin x100).
case_images: SNI-13-224-g003.jpg
case_images: PMC9168305_01_SNI-13-224-g003.jpg
case_images: F3
case_images: Histological examination showed dense lymphoidplasmacytic infiltrate with storiform fibrosis [Figures 2 and 3].
case_images: Immunostaining of many plasma cells with the IgG4 antibody (x100).
case_images: SNI-13-224-g004.jpg
case_images: PMC9168305_01_SNI-13-224-g004.jpg
case_images: F4
case_images: Immunohistochemical staining revealed an increased number of IgG4-positive plasma cells [Figure 4].
case_images: Postoperative MRI (a) T1-weighted image in sagittal section and (b and c) T2-weighted image in axial and coronal section.
case_images: SNI-13-224-g005.jpg
case_images: PMC9168305_01_SNI-13-224-g005.jpg
case_images: F5
case_images: A cerebral MRI was done 1 month after a well-conducted treatment and showed a reduction of the tumor's size [Figure 5].