Most sacral dimples are harmless and don t require any treatment. It is sometimes called hidden spina bifida.
A sacral dimple is an indentation present at birth in the skin on the lower back.
Sacral dimple spina bifida occulta. According to the spina bifida association 10 to 20 percent of. Spina bifida occulta may leave those with the condition susceptible to symptoms caused by their spinal column being left exposed. A very mild form of this condition called spina bifida occulta occurs when the spine doesn t close properly around the spinal cord but the cord remains within the spinal canal.
Spina bifida occulta 24 is a radiographic finding that describes incomplete osseous fusion of the posterior elements that includes pedicle facet joints and lamina. A sacral dimple is a small dimple or cleft at the base of the spinal cord. It is found in the small of the back near the tailbone which is also known as the sacrum.
However in rare cases sacral dimples can be associated with a serious underlying abnormality of the spine or spinal cord spina bifida. In rare cases a sacral dimple can indicate an underlying spinal cord defect such as spina bifida occulta and tethered cord syndrome. Spina bifida occulta sbo is a common malformation of the spine.
Spina bifida occulta occurs when the spine doesn t fully. With it there is a small gap in the spine but no opening or sac on the back. In most cases sbo causes no symptoms however cases associated with back and urogenital problems have been reported.
Spina bifida occulta is the mildest type of spina bifida. Many sacrums have s5 or also s4 open exposing the dorsal surface of the fifth sacral body. Sbo has an estimated prevalence of 12 4.
Spina bifida occulta sbo occurs when the bones of the spinal column do not completely close around the developing nerves of the spinal cord. Many times spina bifida occulta is not discovered until late childhood or adulthood. The spinal cord and the nerves usually are normal.
The level of non closure of the lamina of the sacral bodies is variable. Abnormal spina bifida may also result in the exposure of all the structures in the sacral canal. It s usually located just above the crease between the buttocks.
Sacral dimples also known as sacrococcygeal or coccygeal dimples or pits are the most common cutaneous anomaly detected at neonatal spinal examination. Rarely sacral dimples are associated with a serious underlying abnormality of the spine or spinal cord. It occurs during a baby s development in its mother s womb usually in the first month of pregnancy.
It is a congenital condition.