Two Cases with Incidental Finding of Large Asymptomatic Intradural Lumbar Tumors

Benign lumbar intradural tumors are statistically uncommon and usually present with complaints of back pain with or without radicular neurological complaints. This report involves two separate patients that were found incidentally to have large intradural tumors without any neurologic complaints. In both cases the tumors were discovered when having magnetic resonance imaging (MRI) after minor auto accidents. Neither patient had any pre-existing lumbar or neurologic complaints. The report will review the different regions and types of incidental findings commonly seen on lumbar MRI scans and the need for close follow-up in patients with incidental lesions such as tumors.

[1]  P. Gerszten,et al.  Intradural Spinal Lesions , 2020, CyberKnife NeuroRadiosurgery.

[2]  F. Brett,et al.  Incidental Primary Intradural Carcinoid Tumor in a Patient with Lumbar Radiculopathy. , 2017, World neurosurgery.

[3]  C. R. Goodwin,et al.  Review of stereotactic radiosurgery for intradural spine tumors. , 2017, CNS oncology.

[4]  N. Ishiguro,et al.  How do spinal schwannomas progress? The natural progression of spinal schwannomas on MRI. , 2016, Journal of neurosurgery. Spine.

[5]  Jian-min Zhang,et al.  Minimally invasive removal of lumbar intradural extramedullary lesions using the interlaminar approach. , 2015, Neurosurgical focus.

[6]  A. Ahad,et al.  The accuracy of clinical symptoms in detecting cauda equina syndrome in patients undergoing acute MRI of the spine , 2015, The neuroradiology journal.

[7]  A. Arnautovic,et al.  Extramedullary Intradural Spinal Tumors , 2014 .

[8]  Stephen D. Brown Professional norms regarding how radiologists handle incidental findings. , 2013, Journal of the American College of Radiology : JACR.

[9]  J. Ryu,et al.  Subjective incidental findings of the lumbar spine at MRI. , 2011, AJR. American journal of roentgenology.

[10]  B. Walcott,et al.  Incidental vertebral lesions. , 2011, Neurosurgical focus.

[11]  H. Park,et al.  Incidental findings of the lumbar spine at MRI during herniated intervertebral disk disease evaluation. , 2011, AJR. American journal of roentgenology.

[12]  Steven D Chang,et al.  Stereotactic Radiosurgery Yields Long-term Control for Benign Intradural, Extramedullary Spinal Tumors , 2009, Neurosurgery.

[13]  M. Bapat,et al.  Intradural tumor and concomitant disc herniation of cervical spine , 2011, Indian journal of orthopaedics.

[14]  B. Lumbreras,et al.  Incidental findings in imaging diagnostic tests: a systematic review. , 2010, The British journal of radiology.

[15]  D. Meltzer,et al.  Extraspinal findings on lumbar spine MR imaging. , 2009, Journal of radiology case reports.

[16]  N. Jain,et al.  Incidental findings on MRI of the spine. , 2009, Clinical radiology.

[17]  L. Riley,et al.  Magnetic resonance imaging of spine tumors: classification, differential diagnosis, and spectrum of disease. , 2008, The Journal of bone and joint surgery. American volume.

[18]  H. Terai,et al.  Why does delay exist in the diagnosis of intradural spinal cord tumor despite the availability of MRI? , 2008, Journal of Clinical Neuroscience.

[19]  J. Villano,et al.  Descriptive epidemiology of primary spinal cord tumors , 2008, Journal of Neuro-Oncology.

[20]  L. Visser,et al.  Time to diagnosis of intraspinal tumors , 2005, European journal of neurology.