Barth, A.

Bassetti, C.

Hermann, D.

Hess, C.

Mumenthaler, M.

Porchet, F.

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J Neurol (2008) 255:1836–1837DOI 10.1007/s00415-008-0998-0 LETTER TO THE EDITORSJON 2998that the patients were urged to stand up. In all cases, spinal  tumours (three neurinomas, one hemangioblastoma) were found to be responsible. Patient 1 (53 yrs) presented with over 12 months progressive lum-balgia associated with lancinating pain of the left-sided hip, knee and ankles. The pain typically appeared during night in supine sleeping  positions, being almost absent throughout the day. Since the pa-tient was unable to lie on his back, he was often urged to stand up, which resulted in sudden near-complete pain relief. He had no bladder/bowel disturbances. Neu-rological examination revealed a positive Lasègue sign, but no sen-sorimotor deficits. Myelography showed a L5 neurinoma that ex-tended laterally into the interverte-bral foramen. After surgical re-moval, pain complaints resolved.Patient 2 (52 yrs) consulted us with right-sided lumboischialgia progressive over 6 months irradiat-ing into the calf. The pain was most predominant in the second half of the night during bed rest. It consid-erably improved when sitting up and during daytime physical activ-ity. Pain exacerbation upon Val-salva manoeuvres was noticed. The patient did not have bladder/bowel deficits. Neurological examination did not reveal any focal abnormali-ties. Lumbar MRI exhibited a right-sided L1 neurinoma that partly in-volved the intervertebral foramen. After removal, the lower-back pain disappeared. Some residual pain sensations persisted in the dorsal thigh, associated with L1 hypaes-thesia.Patient 3 (42 yrs) complained about burning pain in the left calf, hip and thigh progressive over 3 weeks. One week before admission, analgetic-resistent lumbalgias  developed irradiating into both thighs, which were particularly pronounced in bed. Thus, the pa-Dirk M. HermannAlain BarthFrançois PorchetChristian W. HessMarco MumenthalerClaudio L. BassettiNocturnal positional  lumboischialgiaPresenting symptom of lumbar spinal tumoursReceived: 15 January 2008Received in revised form: 10 April 2008Accepted: 6 May 2008Published online: 3 September 2008Sirs: Lumbar tumours and disc prolapses typically present with lumboischialgia that may be asso-ciated with radicular sensorimotor deficits [1]. In disc prolapses, the pain is often evoked by physical  activity and typically shows relief during rest, particularly when the patient lies down [1]. In spinal  tumours, the relationship with body posture is less clear. We for the first time report four men with lumbar and leg pain presenting mainly during nocturnal rest in  recumbent sleeping positions, so tient slept in a seated position, which markedly improved his pain. The patient had no bladder/bowel disturbances. Neurological exami-nation revealed no focal abnormal-ities. Lumbar CT showed an intra-dural vascular malformation, which was microsurgically re-sected, turning out to be capillary hemangioblastoma. The back pain resolved. Upon physical distress, short-lasting pain sensations per-sisted in the left calf and foot, being associated with mild S1 hypaesthe-sia.Patient 4 (35 yrs) presented with left-sided lower-leg pain since 3 months, irradiating into the left buttock and thigh over 1 month. This pain was particularly strong during the night in recumbent po-sitions. Therefore, the patient spent most of his time sleeping in an  elbow chair. Upon neurological  examination, there was a slight  hyperpathy of the left thigh and calf. In addition, no sensorimotor deficits or bladder/bowel distur-bances were found. Lumbar MRI revealed a left-sided Th12 neuri-noma (Fig. 1). After surgical re-moval, the pain disappeared. A mild hypaesthesia persisted in the left calf.The stereotypical picture of lumboischialgia without significant sensorimotor deficits, caused by a lower thoracic or lumbar tumour, presenting mainly during the night in patients with supine sleeping positions and urging the patients to stand up or to sleep in a seated position, has not been described. It has been noted previously that low back pain in patients with lumbar tumours may vary to some extent depending on body posture and as such be stronger also in recumbent than upright positions [2]. That spinal neurinomas are particularly prone to induce position-depen-dent pain symptoms might be due to high prevalence of neurinomas [3] as well as to their localization in Prof. Dr. D. M. Hermann ()Vascular Neurology, Dementia and Ageing ResearchDept. of NeurologyUniversity Hospital EssenHufelandstr. 5545122 Essen, GermanyTel.: +49-201/723-2814Fax: +49-201/723-5534E-Mail: dirk.hermann@uk-essen.deD. M. Hermann, MD · C. L. Bassetti, MDDept. of NeurologyUniversity Hospital Zurich, SwitzerlandA. Barth, MDDept. of NeurosurgeryUniversity Hospital Graz, AustriaF. Porchet, MDDept. of NeurosurgerySchulthess Klinik Zurich, SwitzerlandC. W. Hess, MD · M. Mumenthaler, MDDept. of NeurologyInselspital Berne, Switzerland  1837dorsal nerve roots, which makes this tumour particularly apt to cause pain. Positional influences may exert traction on the nerve roots. Although lumbar tumours typically present with sensory defi-Fig. 1  Spinal MRI revealing a neurinoma of the left Th12 root. The tumour is in close contact with the conus that is shifted towards the right. The patient had severe pain lying in bed, which urged him to sleep in an elbow chair. Contrast-enhanced T1-weighted (a, b) and T2-weighted (c) images are shown. R right; L left; Th12 thoracic vertebra 12; L1 lumbar vertebra 1cits (saddle anaesthesia), leg weak-ness, bladder and bowel dysfunc-tions (as cauda-equina syndrome) [4, 5], our patients did not reveal the latter complaints. As such, the presence of positional lower-back pain should make the neurologist consider spinal tumours. ■ Conflict of interest  The authors declare no conflict of interest.References1. Storm PB, Chou D, Tamargo RJ (2002) Lumbar spinal stenosis, cauda equina syndrome, and multiple lumbosacral radiculopathies. Phys Med Rehabil Clin N Am 13:713–7332. Náhlovský J (2006) Neurochirurgie. Galén – Karolinum, Prague, p 4153. Wager M, Lapierre F, Blanc JL, et al. (2000) Cauda equina tumors: a French multicenter retrospective review of 231 adult cases and review of the literature. Neurosurg Rev 23:119–1294. Orendacova J, Cizkova D, Kafka J, et al. (2001) Cauda equina syndrome. Prog Neurobiol 64:613–6375. Wippold FJ 2nd, Smirniotopoulos JG,  Pilgram TK (1997) Lesions of the cauda equina: a clinical and pathology review from the Armed Forces Institute of  Pathology. Clin Neurol Neurosurg 99:229–234

Nocturnal positional lumboischialgia: Presenting symptom of lumbar spinal tumours

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Nocturnal positional lumboischialgia: Presenting symptom of lumbar spinal tumours

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