spina bifida occulta

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 [spi´nah] (L.)
spine (def. 1).
spina bi´fida a developmental anomaly characterized by defective closure of the bony encasement of the spinal cord; the spinal cord and meninges may or may not protrude through the defect (see spina bifida cystica and spina bifida occulta). It is further classified according to the extent of neural involvement (see meningocele and meningomyelocele). See also neural tube defect.
spina bi´fida ante´rior a defect of closure on the anterior surface of the bony spinal canal, often associated with defective development of the abdominal or thoracic viscera.
spina bi´fida cys´tica spina bifida in which there is protrusion through the defect of a cystic swelling that contains the meninges (meningocele) or the meninges and spinal cord (meningomyelocele).
spina bi´fida occul´ta spina bifida in which there is a defect in the bony spinal canal without protrusion of the cord or meninges.
Spina bifida occulta. Posterior vertebral arches have not fused; there is no herniation of the spinal cord or meninges. From Frazier et al., 2000.
spina vento´sa dactylitis of the bones of the hands or feet, occurring mostly in infants and children, with enlargement of digits, caseation, sequestration, and sinus formation.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

spi·na bi·f'i·da oc·cul·'ta

spina bifida with a spinal defect but no protrusion of the cord or its membrane, although there is often some abnormality in their development.
Farlex Partner Medical Dictionary © Farlex 2012

spina bifida occulta

Neurology Spina bifida not manifest clinically. See Spina bifida.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

spi·na bi·fi·da oc·cul·ta

(spī'nă bī'fi-dă ō-kŭl'tă)
Spina bifida in which there is a vertebral arch defect but no protrusion of the cord or its meninges, although there is often some abnormality in their development.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Cheruvu, "Prevalence of sacral spina bifida occulta and its relationship to age, sex, race, and the sacral table angle: an anatomic, osteologic study of three thousand one hundred specimens," Spine, vol.
The number of children with tethered cord syndrome due to spina bifida occulta is unknown because the absence of visible neural tissue can make it difficult to recognize.
Spina bifida occulta is evidenced by a tuft of hair in the lumbosacral region.
Spina bifida occulta, or closed NTD, comprises a spectrum--from a simple midline defect of the vertebrae (that usually goes unnoticed) through to complex abnormalities where the cord is tethered to a lipoma.
The long and short of it was that I did not even know if my son had meningocele, spina bifida occulta or myelomeningocele and if it was the latter I didn't know how to care for the lesion.
Spina bifida occulta includes a wide range of minor defects of mesodermal, neural or ectodermal origin (1).
* Spina bifida occulta is where the only sign of the malformation is a dimple or hair at the site of the defect on the skin of the back.
Natasha, who has five-year-old twin sisters, Catherine and Caroline, was diagnosed with spina bifida occulta during the summer holidays.
Spinal dysraphism can present with a spinal region mass when it is called spina bifida manifesta and without a spinal region mass called spina bifida occulta. The presence of dimple over the back, tuft of hair or cutaneous haemangiomas may draw the attention of the clinician towards the presence of occult spinal dysraphism (1).

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