title: [Radiation-induced lumbosacral plexopathy with severe burning pain after 17 years of radiation therapy for cervical cancer: a case report].
abstract: A 73-year-old woman was admitted with severe burning pain, hyperesthesia, and weakness in the right lower extremity. The patient had undergone radio- and chemotherapy after surgery for cervical cancer 17 years earlier. We diagnosed radiation-induced lumbosacral plexopathy because of conduction block in the deep peroneal nerve and myokymic discharge in the tibialis anterior muscle. Pelvic computed tomography and magnetic resonance imaging ruled out recurrent tumor and nerve-compressing lesions. Although radiation-induced lumbosacral plexopathy is usually characterized by lower motor neuron syndrome, we report a rare case presenting with severe pain and hyperesthesia.
authors.affiliation: Department of Neurology, The Jikei University School of Medicine.
authors.forename: Teppei
authors.initials: T
authors.lastname: Komatsu
authors.forename: Masako
authors.initials: M
authors.lastname: Ikeda
authors.forename: Masahiro
authors.initials: M
authors.lastname: Sonoo
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Hirai
authors.forename: Hidetaka
authors.initials: H
authors.lastname: Mitsumura
authors.forename: Yasuyuki
authors.initials: Y
authors.lastname: Iguchi
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008160:Lumbosacral Plexus / Q000000981:diagnostic imaging / Q000473:pathology* / Q000528:radiation effects*; D008279:Magnetic Resonance Imaging; D016472:Motor Neuron Disease / Q000175:diagnosis* / Q000209:etiology*; D010146:Pain / Q000209:etiology*; D011878:Radiotherapy / Q000009:adverse effects*; D012720:Severity of Illness Index; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D002583:Uterine Cervical Neoplasms / Q000532:radiotherapy*