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intradural
intradural adj. 
/ˌɪntrəˈdjɔːrəl/, /ˌɪntrəˈdʒʊərəl/, /ˌɪntrəˈdʒɔːrəl/,
Brit. /ˌɪntrəˈdjʊərəl/
, /ˌɪntrəˈdjʊərəl//ˌɪntrəˈdjɔːrəl//ˌɪntrəˈdʒʊərəl//ˌɪntrəˈdʒɔːrəl/U.S. /ˌɪntrəˈd(j)ʊrəl/
situated or performed within the dura mater./ˌɪntrəˈd(j)ʊrəl/ΘΚΠ
the world > life > the body > nervous system > cerebrospinal axis > [adjective] > membranes > dura mater
epidural1882
dural1888
intradural1890
1890 J. S. Billings National Med. Dict. I. 711/1 Intradural.
1901 J. Collins in L. Hektoen & D. Riesman Amer. Text-bk. Pathol. xi. 618 Intradural tumors arise either from the inner surface of the dura or the pia.
1908 Practitioner Jan. 84 Subcutaneous injection of the meningococcus into animals fails to produce the disease, intra-dural injection being required.
1950 Jrnl. Neurosurg. 7 1 Intradural granulomas are very rare and may be intramedullary or extramedullary.
1971 Jrnl. Neurosurg. 34 378/1 We therefore think that the intradural approach..is not more hazardous than the extradural approach.
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