Extracranial metastasis of anaplastic oligoastrocytoma

(A) Preoperative brain MRI revealed the left temporal lesions. (B-D) Pathological result showed anaplastic oligoastrocytoma (WHO III). (B) H&E staining (100 x). (C) GFAP (200 x). (D) Oligo-2 (200 x). (E and F) Chest CT scanning revealed the right lung lesions, right hilar and mediastinal lymph node metastasis. (G) The biopsy of the right supraclavicular lymph nodes. (H-J) Pathologic findings showed fibrous connective tissue can be seen in tumor cell infiltration, considering anaplastic oligodendrocyte metastasis. (H) H&E staining (100 x). (I) GFAP (200x). (J) Oligo-2 (200 x). (K) Repeated MRI revealed a lesion in the left occipital lobe, which suggested intracranial glioma recurrence.