概述

骶部凹陷是指有些婴儿在出生时下背部皮肤有凹陷或小坑,通常位于双臀之间的皱褶上方。大多数骶部凹陷无害,也无需治疗。

如果凹陷的面积大,或者附近有一簇毛发、皮赘、肿块或变色区域,则骶部凹陷可能是新生儿严重脊柱疾病的体征。如果是这样,您孩子的医务人员可能会建议进行影像学检查。如果发现脊柱问题,治疗方法取决于根本病因。

症状

骶部凹陷是指下背部皮肤有凹陷或小坑,通常位于双臀之间的皱褶上方。

病因

尚不清楚骶部凹陷的原因。这是一种先天性病症,即出生时就存在。

风险因素

Risk factors for sacral dimples include being born with a spinal cord problem, such as tethered cord syndrome. In this condition the spinal cord doesn't hang free within the spinal canal. Sacral dimples also can be present in newborns without other health conditions.

并发症

少数情况下,骶部凹陷与脊柱或脊髓严重的潜在异常相关。例如:

  • 脊柱裂。当脊柱在脊髓周围无法正确闭合,但脊髓仍留在椎管内时,就会出现轻微的脊柱裂,称为隐性脊柱裂。在大多数情况下,隐性脊柱裂不会引起任何症状,且无需治疗。
  • 脊髓拴系综合征。脊髓通常无阻碍的悬挂在椎管内。出现脊髓栓系综合征时,依附于脊髓的组织会限制脊髓的移动。体征和症状包括下肢无力或麻木,以及大小便失禁。

如果骶部凹陷伴随有簇状毛发、皮赘或肿块,且某些类型的皮肤变色,发生这些脊柱问题的风险就会增加

Dec. 04, 2024
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  2. Cohen BA. Neonatal dimpling. In: Pediatric Dermatology. 5th ed. Elsevier; 2022. https://www.clinicalkey.com. Accessed Aug. 30, 2022.
  3. Sacral dimple — normal. Pediatric Patient Education. https://publications.aap.org/patiented. Accessed Aug. 31, 2022.
  4. Holcomb GW, et al., eds. Neurosurgical conditions. In: Holcomb and Ashcraft's Pediatric Surgery. 7th ed. Elsevier; 2020. https://www.clinicalkey.com. Accessed Aug. 31, 2022.
  5. AskMayoExpert. Spina bifida. Mayo Clinic; 2021.
  6. Andreas A, et al., eds. Current status of paediatric imaging. In: Grainger & Allison's Diagnostic Radiology: A Textbook of Medical Imaging. 7th ed. Elsevier; 2021. https://www.clinicalkey.com. Accessed Aug. 31, 2022.

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