Eight months after radical surgery for @entity4153 ( @entity4153 ) of the @entity1494 , a 69-year-old @entity1 was admitted with a @entity1313 in the @entity75 . The @entity5 , about 5 cm in diameter, was intensely but heterogeneously enhanced on computed tomography and magnetic resonance imaging. The @entity5 was subtotally removed, leaving only the portion adjacent to the anterior horn of the left lateral ventricle. Microscopically, the @entity5 was composed of diffuse sheets of small @entity5 cells with round to spindle-shaped nuclei, indistinct nucleoli, scant or absent cytoplasm, and indistinct cell margins. Immunohistochemically, the @entity5 cells were positive for @entity5473 , @entity3508 , @entity3507 , and keratin. Ultrastructurally, the @entity5 cells showed classic neurosecretory granules and microvilli in the cytoplasm. The @entity5 was diagnosed as a brain metastasis from @entity4153 of the @entity1494 . After surgery, whole-brain radiation therapy of 40 Gy was performed, which succeeded in controlling the @entity41 . However, 4 months after surgery, the @entity1 died of @entity3909 . To our knowledge, this is the first report focusing on brain metastasis from @entity4153 of the @entity1494 . The clinicopathological features and pathological diagnosis of this @entity5 are discussed.

Brain metastasis from @entity4153 of the XXXX : a case report.

@entity1 :: ('9606', 'Species') :: ['patient', 'man'] @entity4153 :: ('MESH:D018288', 'Disease') :: ['SCNC', 'small-cell neuroendocrine carcinoma'] @entity1494 :: ('MESH:D001745', 'Disease') :: ['urinary bladder'] @entity1313 :: ('MESH:D001932', 'Disease') :: ['brain tumor'] @entity75 :: ('MESH:D001927', 'Disease') :: ['left frontal lobe'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor'] @entity5473 :: ('6855', 'Gene') :: ['synaptophysin'] @entity3507 :: ('1113', 'Gene') :: ['chromogranin A'] @entity41 :: ('MESH:D018365', 'Disease') :: ['residual tumor'] @entity3909 :: ('MESH:D055756', 'Disease') :: ['meningeal carcinomatosis'] @entity3508 :: ('2026', 'Gene') :: ['neuron-specific enolase']
@entity1494 :: (MESH:D001745,Disease) :: ['urinary bladder']
