[Etiology of fixed lumbar lordosis: the lumbar dermoid].

Following a general survey of fixed lumbar lordosis the dermoids, in particular lumbar dermoids and their role in fixed lumbar lordosis, are described. Intralumbar dermoids must be regarded as a genuine rarity. The occurrence of fixed lumbar lordosis may be an early symptom. After radical removal restitutio ad integrum is possible. If any portion is left in situ the risk of recurrence is high. Follow-ups over a number of years are therefore mandatory.