case_images: PMC5379818_01
case_images: MRI showing expansile osseous lesion seen along the floor of posterior cranial fossa involving the posterior portion of right petrous temporal bone
case_images: AJNS-12-95-g001.jpg
case_images: PMC5379818_01_AJNS-12-95-g001.jpg
case_images: F1
case_images: Magnetic resonance imaging (MRI) brain showed an expansile osseous lesion (32 x 16 mm) seen along the floor of posterior cranial fossa, predominantly involving the posterior portion of right petrous temporal bone [Figure 1].
case_images: CT-Temporal bone showing locally destructive lesion involving the right mastoid air cells with disruption and erosion of the right temporal bone
case_images: AJNS-12-95-g002.jpg
case_images: PMC5379818_01_AJNS-12-95-g002.jpg
case_images: F2
case_images: Computed tomography (CT) - temporal bone showed a locally destructive lesion involving the right mastoid air cells with complete disruption of the middle and inner ear anatomy and marked erosion of the affected bone [Figure 2].
case_images: Microphotograph showing diffuse sheets of plasma cells. (Hematoxylene and Eosin stain)
case_images: AJNS-12-95-g003.jpg
case_images: PMC5379818_01_AJNS-12-95-g003.jpg
case_images: F3
case_images: Histopathology revealed plasmacytoma with immunohistochemistry positive for CD 138 [Figures 3 and 4].
case_images: Immunohistochemisty for CD 138 showing strong positivity in tumor cells
case_images: AJNS-12-95-g004.jpg
case_images: PMC5379818_01_AJNS-12-95-g004.jpg
case_images: F4
case_images: Histopathology revealed plasmacytoma with immunohistochemistry positive for CD 138 [Figures 3 and 4].