Common in healthy children (~5%) 1.
Simple sacral dimples have the following features 1:
- <5 mm in diameter
- <2.5 cm from the anus
- midline without visible drainage
- not associated with other cutaneous stigmata of spinal dysraphism (e.g. hairy tuft, rudimentary tail, haemangioma)
Ultrasound is the most commonly used modality, as well as being the modality of choice in neonatal assessment. It is used to assess whether there is any communication with the vertebral column / spinal canal.
- 1. Kucera JN, Coley I, O'Hara S et-al. The simple sacral dimple: diagnostic yield of ultrasound in neonates. Pediatr Radiol. 2015;45 (2): 211-6. doi:10.1007/s00247-014-3110-1 - Pubmed citation
- 2. Haveri FT, Inamadar AC. A cross-sectional prospective study of cutaneous lesions in newborn. ISRN Dermatol. 2014;2014: 360590. doi:10.1155/2014/360590 - Free text at pubmed - Pubmed citation
- 3. Dähnert W. Radiology Review Manual. LWW. (2011) ISBN:1609139437. Read it at Google Books - Find it at Amazon
Congenital spinal abnormalities
- spinal dysraphism
- Chiari malformations