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Simultaneous herpes zoster rash in the femoral and medial buttock region that illustrates the innervation zone of the dorsal ramus of the lumbar spinal nerve root: A case report

医学 磁共振成像 神经根 腰椎 退行性椎间盘病 鉴别诊断 放射科 外科 病理
作者
Hiroshi Nomura,Hiroshi Iwasaki,Shigeharu Nomura,Yasuhisa Tanaka
出处
期刊:Journal of Orthopaedic Science [Elsevier]
卷期号:29 (1): 399-401
标识
DOI:10.1016/j.jos.2022.05.006
摘要

Intradural herniation (IDH) or transdural disc herniation is a rare presentation of lumbar disc disease. Preoperative imaging findings should be carefully and thoroughly interpreted. Although imaging modalities such as computed tomography (CT) or magnetic resonance imaging (MRI) are readily available, a definitive diagnosis cannot be made based solely on these modalities. Operative procedures must be planned to prevent unexpected complications.A 67-year-old man presented with right lower extremity weakness and numbness with bowel and bladder involvement for 2 weeks, after falling from a standing position. MRI revealed a large herniated disc at L2-L3, which was suspected to be IDH. Posterior discectomy and interbody fusion were also performed. Intraoperative findings revealed no disc material in the epidural space or dural sac tenting. Dorsal midline durotomy was performed, and a mass-like lesion was found and resected. Subsequently, pathological analysis revealed disc tissue with evidence of moderate chronic inflammation and a focal increase in fibrosis. The patient was discharged without complications.Lower extremity strength improved to grades IV-V, accompanied by a return to normal bowel and bladder function within 1 month, without any wound complications. Lower extremity strength recovered fully to grade V, and the patient started walking independently within 6 months.A large disc herniation, suspected to be an IDH, should be thoroughly investigated by carefully reviewing MRI scans before proceeding with any surgical procedure to prevent unexpected situations. Nonetheless, preoperative imaging alone does not ensure a definitive diagnosis, and the differential diagnosis must include other mass-like lesions. Intraoperative findings and pathological reports are essential for definitive diagnosis of IDH.
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