PONTINE NEOPLASM
\pˈɒntiːn nˈiːə͡ʊplˌazəm], \pˈɒntiːn nˈiːəʊplˌazəm], \p_ˈɒ_n_t_iː_n n_ˈiː__əʊ_p_l_ˌa_z_ə_m]\
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Benign and malignant intra-axial tumors of the MESENCEPHALON; PONS; or MEDULLA OBLONGATA of the BRAIN STEM. Primary and metastatic neoplasms may occur in this location. Clinical features include ATAXIA, cranial neuropathies (see CRANIAL NERVE DISEASES), NAUSEA, hemiparesis (see HEMIPLEGIA), and quadriparesis. Primary brain stem neoplasms are more frequent in children. Histologic subtypes include GLIOMA; HEMANGIOBLASTOMA; GANGLIOGLIOMA; and EPENDYMOMA.
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Snake's-head
- Guinea-hen flower; -- so called in England because its spotted petals resemble the scales of a snake's head.