SPONGIOBLASTOMAS
\spˌʌnd͡ʒɪˌɒblastˈə͡ʊməz], \spˌʌndʒɪˌɒblastˈəʊməz], \s_p_ˌʌ_n_dʒ_ɪ__ˌɒ_b_l_a_s_t_ˈəʊ_m_ə_z]\
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A group of malignant tumors of the nervous system that feature primitive cells with elements of neuronal and/or glial differentiation. Use of this term is limited by some authors to central nervous system tumors and others include neoplasms of similar origin which arise extracranially (i.e., NEUROECTODERMAL TUMOR, PRIMITIVE, PERIPHERAL). This term is also occasionally used as a synonym for MEDULLOBLASTOMA. In general, these tumors arise in the first decade of life and tend to be highly malignant. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, p2059)
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Word of the day
Snake's-head
- Guinea-hen flower; -- so called in England because its spotted petals resemble the scales of a snake's head.