Thavara B D, Parambil R M, Jose B V, Parol U, Sasi P K, Sai Sree Krishna G. A Rare Case of Spinal Intradural Neurenteric Cyst in a Septuagenarian Causing Acute Paraparesis. Iran J Neurosurg 2024; 10 : 15
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1- Associate Professor, Department of Neurosurgery, Government Medical College, Kozhikode, Kerala, India , drbinoytd@gmail.com
2- Professor of Neurosurgery, Department of Neurosurgery, Government Medical College, Kozhikode, Kerala, India
3- Associate Professor, Department of Neurosurgery, Government Medical College, Kozhikode, Kerala, India
4- Assistant Professor, Department of Pathology, Government Medical College, Kozhikode, Kerala state, India
5- Assistant Professor, Department of Neurosurgery, Government Medical College, Kozhikode, Kerala state, India
6- Senior Resident, Department of Neurosurgery, Government Medical College, Kozhikode, Kerala, India
Abstract: (219 Views)
Background and Importance: Neurenteric cysts (NCs) account for 0.7 to 1.3% of all spinal tumors and are most commonly present during the first three decades of life. Only two cases have been reported in individuals in their 7th and 8th decades of life. This study described a rare case of an NC in a septuagenarian (70 – 79 years of age) who presented with atypical features of the disease.
Case Presentation: A 77-year-old female patient presented with acute onset paraparesis. Magnetic resonance imaging revealed a 13.6 × 14.1 × 15.4 mm intradural extramedullary cystic lesion, which was anteriorly located at the C7-D1 level. It was T1 hypointense, T2 hyperintense, and showed faint contrast enhancement at the junction between the cyst and the spinal cord. At surgery, a cyst with a greyish-white thin wall was noted in the spinal canal, displacing the spinal cord posteriorly. The cyst wall was partially excised, and a small portion adhering to the spinal cord was left behind. The histopathology report was consistent with an NC. At the 2-week follow-up, the patient’s lower limb strength had improved.
Conclusion: Although rare, NCs can present in the seventh decade of life. Magnetic resonance imaging may reveal unusual findings, like T1 hypointensity and faint contrast enhancement of the cyst wall. In elderly patients, a portion of the cyst wall may be left behind if it adheres to the spinal cord to avoid the risk of neurological deterioration.
Article number: 15
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- Among all spinal cord tumors, neurenteric cysts (NCs) account for 0.7 to 1.3%.
- NCs primarily occur during the first three decades of life, with the most common location being the cervicothoracic region.
- In the majority of cases, NCs are non-contrast enhancing lesions and exhibit isointensity or mild hyperintensity on T1-weighted MRI.
- We reported a rare case of an NC occurring in a 77-year-old woman, which exhibited atypical findings on the MRI scan, like T1 hypointensity of the cyst and faint contrast enhancement at the junction between the cyst and the spinal cord.
- Total excision is the treatment of choice; however, in older patients, partial excision of the cyst is safer.