Triple lumbar dermal sinuses: unusual presentation of a typically solitary midline lesion.
BACKGROUND
Congenital dermal sinus is a type of closed spinal dysraphism caused by incomplete disjunction. The lesion occurs everywhere along neuraxis predominantly as a solitary midline sinus in the lumbosacral area.


METHODS
The authors report on a 10-month-old girl with triple congenital dermal sinuses associated with dermoid tumors and intradural extension of one of them.


CONCLUSIONS
Triple dermal sinuses of the lumbosacral area in a single patient have never been described previously. Incomplete disjunction is suggested to cause this abnormality thereafter the orifice may be divided to three sinuses and some mesenchymal tissues separated the two proximal sinuses to a paramedian location.
Ansari
Saeed
S
Department of Neurosurgery, Children's Hospital Medical Center, Tehran University of Medical Science, Tehran, Iran.
Andrabi
Yasir
Y
El Khashab
Mostafa
M
Bateni
Farzad
F
Dadmehr
Majid
M
Iskandar
Bermans J
BJ
Nejat
Farideh
F
D005260:Female; D006801:Humans; D007223:Infant; D008161:Lumbosacral Region / Q000473:pathology* / Q000601:surgery*; D016136:Spina Bifida Occulta / Q000175:diagnosis* / Q000601:surgery*