| 单词 | myelocele |
| 释义 | myelocele|ˈmaɪələʊsiːl|
Also (erron.) -cœle.
[f. myelo- + Gr. κήλη tumour, esp. rupture, hernia.]
1. Path.
a. = myelomeningocele.
b. Spina bifida in which tissue of the spinal cord lies exposed over part of its length, without protrusion as a swelling; an area of neural tissue so exposed.
1875Jones & Sieveking Path. Anat. (ed. 2) xii. 290 The protruded sac contains some portion of the spinal cord itself, forming the so-called myelocele. 1922Brain XLV. 44 Myelocele... Here.. segments of the medullary folds have remained open and the neural ectoderm lies exposed on the surface of the body as a ribbon of delicate tissue down the mid-dorsal line. 1924J. A. Foote Dis. New-Born x. 140 Myelocele, or meningo-myelocele, is the name given to the tumor when the spinal cord itself is concerned in the embryonic fissure. 1952J. E. Morison Foetal & Neonatal Path. xiv. 247 Especially when the tissues are infected a myelocoele may be incorrectly described as a myelomeningocoele. 1963[see myelomeningocele]. 1974Passmore & Robson Compan. Med. Stud. III. xxxvi. 9/2 The [spinal] cord may be fully exposed, usually for a length of several segments without any covering from the dura mater, forming a myelocoele.
2. Anat. Var. of myelocœle. |
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