Split notochord syndrome is a rare congenital malformation that results in spinal anomalies associated with anomalies of the gastrointestinal tract and central nervous system. This report presents an infrequently described variant of this syndrome. A 9-month-old female presented with a dorsal midline mass since birth which was partially covered by skin, and part of the lesion gave a gross appearance of intestinal mucosa. MRI was suggestive of partial sacral agenesis with spinal dysraphism with tethered cord. Excision of the mass with repair of the spinal defect was done. Histopathology confirmed the presence of gastrointestinal mucosa.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1159/000319398 | DOI Listing |
Childs Nerv Syst
December 2024
Division of Neurosurgery, IRCCS Istituto Giannina Gaslini, Genoa, Italy.
Split notochord syndrome (SNS) is a rare congenital anomaly characterized by incomplete midline notochordal integration during gastrulation, leading to segmental clefts of the spine. This case report describes a female patient with symptomatic cervico-dorsal SNS associated with a neurenteric cyst (NEC), intrathoracic gut duplication, and secondary hydrocephalus. Multistep surgical interventions were performed, including hydrocephalus management, excision of the cyst and gut duplication, and detethering with sectioning of the filum.
View Article and Find Full Text PDFNat Cell Biol
July 2024
School of Medicine, Tsinghua University, Beijing, China.
Currently, the dynamic accessible elements that determine regulatory programs responsible for the unique identity and function of each cell type during zebrafish embryogenesis lack detailed study. Here we present SPATAC-seq: a split-pool ligation-based assay for transposase-accessible chromatin using sequencing. Using SPATAC-seq, we profiled chromatin accessibility in more than 800,000 individual nuclei across 20 developmental stages spanning the sphere stage to the early larval protruding mouth stage.
View Article and Find Full Text PDFNeurosurg Focus
May 2024
3Department of Neurological Surgery, Mayo Clinic, Jacksonville, Florida; and.
Objective: Chordomas are rare tumors of the skull base and spine believed to arise from the vestiges of the embryonic notochord. These tumors are locally aggressive and frequently recur following resection and adjuvant radiotherapy. Proton therapy has been introduced as a tissue-sparing option because of the higher level of precision that proton-beam techniques offer compared with traditional photon radiotherapy.
View Article and Find Full Text PDFChilds Nerv Syst
December 2023
Department of Neurosurgery, Boston Children's Hospital, Boston, USA.
Purpose: Abnormalities in notochordal development can cause a range of developmental malformations, including the split notochord syndrome and split cord malformations. We describe two cases that appear related to unusual notochordal malformations, in a female and a male infant diagnosed in the early postnatal and prenatal periods, which were treated at our institution. These cases were unusual from prior cases given a shared constellation of an anterior cervicothoracic meningocele with a prominent "neural stalk," which coursed ventrally from the spinal cord into the thorax in proximity to a foregut duplication cyst.
View Article and Find Full Text PDFObjective: Chordomas are slow-growing tumors derived from notochord remnants. Despite margin-negative excision and postoperative radiation therapy, spinal chordomas (SCs) often progress. The potential of immunohistochemical (IHC) markers, such as epithelial membrane antigen (EMA), combined with machine learning algorithms to predict long-term (≥ 12 months) postoperative tumor progression, has been understudied.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!