What is a dermal sinus tract?
A dermal sinus tract is an abnormality present at birth over the dorsal midline where an abnormal epithelialised connection from the skin tracks inwards towards the spine, most commonly seen in the lumbosacral region (box 1).1 It is a form of spinal dysraphism, an umbrella term for various abnormalities in the spinal …
What causes a dermal sinus tract?
Dermal sinuses are congenital malformation, which are the subtype of occult spinal dysraphism. They are result from incomplete separation of epithelial and neural ectoderm. Failed disjunction causes persistent tract line between the skin and deeper tissues. Most of cases are located at the lumbosacral region.
What is dorsal dermal sinus tract?
Dorsal dermal sinus is an epithelium-lined tract from the skin to the spinal cord, cauda equina, or arachnoid as in a form of spinal dysraphism.
What is the etiology of spinal Dysraphism?
The causes of spinal dysraphism are not yet completely understood. Genetic and environmental factors both seem to play a role. The spinal cord arises very early in fetal development–in the first several weeks of gestation. Many forms of spinal dysraphism develop during this time.
What is dermoid sinus in Rhodesian Ridgebacks?
Dermoid sinuses are congenital abnormalities (present from birth) that consist of hollow tubular indentations of the skin that penetrate down into the tissue below. They create problems because they are prone to infections. They occur along the dorsal midline (centre of the back of the dog.
When should I be concerned about my sacral dimple?
Most sacral dimples are harmless and don’t require any treatment. Sacral dimples that are accompanied by a nearby tuft of hair, skin tag or certain types of skin discoloration are sometimes associated with a serious underlying abnormality of the spine or spinal cord.
Are sacral dimples painful?
If it becomes infected, it can become swollen and cause pain. Sometimes pus and blood will ooze from the cyst. A sacral dimple is something you’re born with and a pilonidal cyst is something that develops after birth. Anyone can develop a pilonidal cyst, but it’s most common in young men.
What is a spinal sinus?
Spinal dermal sinus tracts consist of an epithelial-lined tract extending from the skin surface to the spinal fascia, dura mater, or spinal cord. These lesions may be found anywhere along the midline of the neural axis. They result from abnormal ectodermal adhesion of the neural tube to the dermis.
How is spinal dysraphism diagnosed?
How do doctors diagnose spinal dysraphism? At around 15 weeks gestation, a blood test measures the levels of alpha-fetoprotein (AFP) (a protein made by your baby’s developing liver). If the AFP levels are higher than usual, your doctor may suggest more tests to check for spinal dysraphism.
What is meningocele vs myelomeningocele?
With meningoceles, the spinal cord has developed normally and is undamaged. The child has no neurological problems. Myelomeningocele is the most severe form of spina bifida, occurring nearly once for every 1,000 live births.