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Imaging evolution from “presyrinx” to syrinx in patient with spinal lipoma
Journal article   Open access

Imaging evolution from “presyrinx” to syrinx in patient with spinal lipoma

Kiyoharu Shimizu, Takafumi Mitsuhara, Masaaki Takeda and Satoshi Yamaguchi
Surgical neurology international, Vol.12, p.633
12/30/2021
DOI: 10.25259/SNI_1104_2021
PMCID: PMC8942189
PMID: 35350827
url
https://doi.org/10.25259/SNI_1104_2021View
Published (Version of record) Open Access

Abstract

Background: The evolution of syrinx formation has rarely been documented. Here, we report a patient whose “presyrinx” evolved on successive magnetic resonance (MR) images to a mature syrinx. Case Description: A patient had a lipoma and tethered cord at birth. At 3 weeks of age, he had undergone a partial removal of the lipoma and untethering of the spinal cord. At age 6, the thoracic MR images showed edema within the gray matter of the cord at the T7 level, consistent with a “presyrinx.” In addition, subsequent MR studies (i.e., at age 7) showed a small cavity in the right posterior horn of the cord accompanied by further expansion throughout the right-sided gray matter. Despite repeated cord untethering at age 7, the T7 parenchymal cord change evolved into a mature syrinx by age 10. Conclusion: An infant with a lipoma/tethered cord, despite two instances of cord detethering (i.e., ages 3 weeks and 7 years), showed continued MR evolution of a “presyrinx” to a mature syrinx by age 10.

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