Intradural Disk Herniation Mimicking a Spinal Tumor: Radiologic Imaging, Pathogenesis, and Operative Management

Intradural disk herniation (IDH) is a rare condition, occurring more often at the L4-5 level. We examined a case of an IDH at the L1-2 level mimicking an intradural spinal tumor. A 71-year-old woman with a long history of backache and pain radiating down the left leg was admitted to our hospital wit...

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Main Authors: Daisuke Tateiwa, Ryoji Yamasaki, Rinsei Tei, Yasushi Shin, Kenta Ariga, Kenji Hayashida, Eiji Wada
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Case Reports in Orthopedics
Online Access:http://dx.doi.org/10.1155/2018/9810762
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author Daisuke Tateiwa
Ryoji Yamasaki
Rinsei Tei
Yasushi Shin
Kenta Ariga
Kenji Hayashida
Eiji Wada
author_facet Daisuke Tateiwa
Ryoji Yamasaki
Rinsei Tei
Yasushi Shin
Kenta Ariga
Kenji Hayashida
Eiji Wada
author_sort Daisuke Tateiwa
collection DOAJ
description Intradural disk herniation (IDH) is a rare condition, occurring more often at the L4-5 level. We examined a case of an IDH at the L1-2 level mimicking an intradural spinal tumor. A 71-year-old woman with a long history of backache and pain radiating down the left leg was admitted to our hospital with the worsening of these symptoms. Magnetic resonance imaging and computed tomographic myelography demonstrated an intradural mass at the L1-2 level. Given the radiologic findings and the location of the mass, the preoperative differential diagnosis centered on intradural spinal tumors. Dural incision was performed using a surgical microscope to resect the mass. Contrary to our expectation, the diagnosis made during the surgery was IDH. Despite advances in imaging techniques, IDH could not be definitively diagnosed preoperatively. The pathogenesis of IDH remains unclear. In our patient, the ventral dural defect was smooth and round, and the dural tissue around the defect was thickened. These intraoperative findings suggested that the patient’s IDH resulted not from an acute new event but from a chronic process. We recommend dural incision using a surgical microscope for treating IDH because it provides a clear visual field.
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institution Kabale University
issn 2090-6749
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language English
publishDate 2018-01-01
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series Case Reports in Orthopedics
spelling doaj-art-a3578d9fb41d48a4b33efe8563f9ed172025-02-03T01:31:12ZengWileyCase Reports in Orthopedics2090-67492090-67572018-01-01201810.1155/2018/98107629810762Intradural Disk Herniation Mimicking a Spinal Tumor: Radiologic Imaging, Pathogenesis, and Operative ManagementDaisuke Tateiwa0Ryoji Yamasaki1Rinsei Tei2Yasushi Shin3Kenta Ariga4Kenji Hayashida5Eiji Wada6Department of Orthopaedic Surgery, Osaka Police Hospital, 10-31 Kitayama-cho, Tennoji-ku, Osaka 543-0035, JapanDepartment of Orthopaedic Surgery, Osaka Police Hospital, 10-31 Kitayama-cho, Tennoji-ku, Osaka 543-0035, JapanSpine and Spinal Cord Center, Osaka Police Hospital, 10-31 Kitayama-cho, Tennoji-ku, Osaka 543-0035, JapanSpine and Spinal Cord Center, Osaka Police Hospital, 10-31 Kitayama-cho, Tennoji-ku, Osaka 543-0035, JapanDepartment of Orthopaedic Surgery, Osaka Police Hospital, 10-31 Kitayama-cho, Tennoji-ku, Osaka 543-0035, JapanDepartment of Orthopaedic Surgery, Osaka Police Hospital, 10-31 Kitayama-cho, Tennoji-ku, Osaka 543-0035, JapanSpine and Spinal Cord Center, Osaka Police Hospital, 10-31 Kitayama-cho, Tennoji-ku, Osaka 543-0035, JapanIntradural disk herniation (IDH) is a rare condition, occurring more often at the L4-5 level. We examined a case of an IDH at the L1-2 level mimicking an intradural spinal tumor. A 71-year-old woman with a long history of backache and pain radiating down the left leg was admitted to our hospital with the worsening of these symptoms. Magnetic resonance imaging and computed tomographic myelography demonstrated an intradural mass at the L1-2 level. Given the radiologic findings and the location of the mass, the preoperative differential diagnosis centered on intradural spinal tumors. Dural incision was performed using a surgical microscope to resect the mass. Contrary to our expectation, the diagnosis made during the surgery was IDH. Despite advances in imaging techniques, IDH could not be definitively diagnosed preoperatively. The pathogenesis of IDH remains unclear. In our patient, the ventral dural defect was smooth and round, and the dural tissue around the defect was thickened. These intraoperative findings suggested that the patient’s IDH resulted not from an acute new event but from a chronic process. We recommend dural incision using a surgical microscope for treating IDH because it provides a clear visual field.http://dx.doi.org/10.1155/2018/9810762
spellingShingle Daisuke Tateiwa
Ryoji Yamasaki
Rinsei Tei
Yasushi Shin
Kenta Ariga
Kenji Hayashida
Eiji Wada
Intradural Disk Herniation Mimicking a Spinal Tumor: Radiologic Imaging, Pathogenesis, and Operative Management
Case Reports in Orthopedics
title Intradural Disk Herniation Mimicking a Spinal Tumor: Radiologic Imaging, Pathogenesis, and Operative Management
title_full Intradural Disk Herniation Mimicking a Spinal Tumor: Radiologic Imaging, Pathogenesis, and Operative Management
title_fullStr Intradural Disk Herniation Mimicking a Spinal Tumor: Radiologic Imaging, Pathogenesis, and Operative Management
title_full_unstemmed Intradural Disk Herniation Mimicking a Spinal Tumor: Radiologic Imaging, Pathogenesis, and Operative Management
title_short Intradural Disk Herniation Mimicking a Spinal Tumor: Radiologic Imaging, Pathogenesis, and Operative Management
title_sort intradural disk herniation mimicking a spinal tumor radiologic imaging pathogenesis and operative management
url http://dx.doi.org/10.1155/2018/9810762
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