case_images: PMC6335883_01
case_images: Preoperative magnetic resonance imaging images. (a) T2-weighted axial, (b) T1-weighted axial, (c) Gd-enhanced T1-weighted axial. Images show contrast-enhancing lesion surrounded by a vasogenic edema with a little compress to fourth ventricular
case_images: AJM-9-28-g001.jpg
case_images: PMC6335883_01_AJM-9-28-g001.jpg
case_images: F1
case_images: A homogenous hyperintensity was also seen postcontrast without central necrosis [Figure 1].
case_images: Histopathologic findings. (a) A hematoxylin and eosin section shows a tumor tissue within cerebellar tissue, (b) a hematoxylin and eosin section shows Reed-Sternberg cells (arrows), eosinophils, plasma cells, histiocytes, and small lymphocytes, (c) immunostain shows immunoreactivity for CD30 marker
case_images: AJM-9-28-g002.jpg
case_images: PMC6335883_01_AJM-9-28-g002.jpg
case_images: F2
case_images: CD30 marker and were negative for CD20 and ALK-1 markers. CD3 and CD5 markers highlight the small background lymphocytes [Figure 2].
case_images: Follow-up magnetic resonance imaging 36 months after operation. (a) T2-weighted axial, (b) T1-weighted axial, (c) Gd-enhanced T1-weighted axial. Images show preoperative-enhanced mass is removed totally. There is no evidence of local recurrence, edema, or abnormal enhancement
case_images: AJM-9-28-g003.jpg
case_images: PMC6335883_01_AJM-9-28-g003.jpg
case_images: F3
case_images: The patient was followed regularly with routine physical and neurological examination, laboratory tests (complete blood count, erythrocyte sedimentation rate, and lactate dehydrogenase), MRI of the brain, and low-dose CT scan of the neck, chest, abdomen, and pelvis at 3, 6, 12, 24, and 36 months postoperatively [Figure 3].