Journal of Neurology and Neuroscience

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Case Report - (2019) Volume 10, Issue 4

A Patient with Upper Cervical Spinal Cord Infarction Presenting with the Sudden Onset of Severe Occipital Headache Followed by Occipital Neuralgia

Hisashi Ito1*, Ai Seki2, Shigeru Fukutake1, Sanae Odake1,3, Terunori Sano4, Yuji Uchida2, Hiroshi Kitahara5 and Tetsumasa Kamei1

1Department of Neurology, Shonan Fujisawa Tokushukai Hospital, Fujisawa, Japan

2Department of Emergency Medicine, Shonan Fujisawa Tokushukai Hospital, Fujisawa, Japan

3Department of Internal Medicine, Sodegaura Satsuki-dai Hospital, Sodegaura, Japan

4Department of Pathology and Laboratory Medicine, National Center Hospital, National Center of Neurology and Psychiatry, Kodaira, Japan

5Emergency Care Center, Yokosuka General Hospital Uwamachi, Yokosuka, Japan

*Corresponding Author:
Dr. Hisashi Ito
Department of Neurology
Shonan Fujisawa Tokushukai Hospital
251-0041, Fujisawa, Japan
Tel: +81-466-35-1177
Fax: +81-466-35-1300
E-mail: [email protected]

Received Date: January 28, 2019; Accepted Date: July 22, 2019; Published Date: July 30, 2019

Citation: Ito H, Seki A, Fukutake S, Odake S, Sano T, et al. (2019) A Patient with Upper Cervical Spinal Cord Infarction Presenting with the Sudden Onset of Severe Occipital Headache Followed by Occipital Neuralgia. J Neurol Neurosci Vol.10 No.4:300. DOI: 10.36648/2171-6625.10.4.300

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A 78-year-old man suddenly developed a severe occipital headache, followed by right greater occipital neuralgia (ON). Brain MR imaging revealed a spinal cord infarction in the territory of the right posterior spinal artery (PSA) at the C2 level without vertebral artery (VA) dissection. Even without VA dissection, upper cervical PSA syndrome could cause severe occipital headache. Furthermore, ipsilateral ON could follow it. The present case suggests that severe occipital headache and ON can occur in a patient with upper cervical PSA syndrome without VA dissection.


Spinal cord infarction; Posterior spinal artery; Headache; Occipital neuralgia


Upper cervical spinal cord infarction in the region supplied by the posterior spinal artery (PSA) is extremely rare. One of the causes of spinal cord infarction is vertebral artery (VA) dissection, which occurs headache or neck pain at a high rate [1-9]. We herein report a patient with upper cervical PSA syndrome without VA dissection. He suddenly developed the worst occipital headache of his life, followed by ipsilateral occipital neuralgia (ON).

Case Report

A 78-year-old man with hypertension, diabetes mellitus, and dyslipidemia, suddenly developed the most severe throbbing pain that he had ever experienced in the right occipital region with vomiting. An abnormal sensation of the right upper limb occurred simultaneously. He was transported to our hospital by ambulance.

On examination, he was initially hypertensive, at 174/86 mmHg. He presented with neither cranial nerve abnormality nor muscle weakness; however, we observed severe disturbance of deep sensation in the right upper limb with sensory ataxia. Tenderness was observed in the upper cervical vertebra despite being negative for meningeal signs. Hyperglycemia (289 mg/dL) with high HbA1c levels (9.3%, NGSP) and hyperlipidemia (TG 175 mg/ dL, LDL 158 mg/dL) were observed. Cerebrospinal fluid revealed neither erythrocytes nor pleocytosis but showed high protein levels (71.2 mg/dL). The opening pressure was 200 mm H2O. T2- weighted and FLAIR MR imaging of the brain demonstrated a high-intensity area in a right dorsal lesion of the cervical cord at the C2 level [10], which was supplied by the right PSA (Figure 1). 3D-CT angiography revealed severe stenosis of the right vertebral artery (VA) without a string sign or double lumen. No aneurysm was detected (Figure 2). The right-sided N20 was poorly evoked among somatosensory evoked potentials.


Figure 1: T2-weighted (sagittal view) and FLAIR (axial view) MR imaging. High intensity lesion corresponds to the C2 level [10].


Figure 2: 3D-CT angiography shows severe stenosis in the right vertebral artery (black arrowheads).

The severe occipital headache was improved with 400 mg of acetaminophen; however, a sharp and jabbing pain in the right greater occipital nerve region developed, followed by hypesthesia and hypalgesia, which was consistent with greater ON. A dose of 100 mg of carbamazepine daily showed good efficacy against ON. Sensory disturbance improved gradually, and he was discharged on the 16th day after admission.


Spinal cord infarction, especially in the territory of the PSA, is exceedingly rare. PSA syndrome due to spinal cord infarction is characterized by acute or sudden onset of pain, loss of deep sensation, and bladder-bowel disturbances. VA dissection or occlusion is considered to play an important role in the development of PSA syndrome in the cervical cord [6], and VA dissection could lead to the sudden onset of occipital or neck pain, which is important knowledge for emergency physicians because it might be misdiagnosed as other critical diseases such as subarachnoid hemorrhage.

A characteristic of this patient is that he presented with PSA syndrome with the worst headache of his life despite not presenting with VA dissection. The pathomechanism of pain due to an intramedullary lesion has not been elucidated; however, up-regulation of neuronal activity with an increase of excitatory glutaminergic activity or a change in voltage-sensitive Na+ channels has been suggested [11]. Furthermore, a pathological lesion in the root entry zone, which is an initial pain-processing center in the central nervous system [12], might have some associations with deafferentation pain by blockade of an afferent pathway.

Another characteristic of this patient is that ON followed a severe occipital headache. ON is defined as a unilateral or bilateral paroxysmal, shooting or stabbing pain in the posterior part of the scalp, involving the distributions of the greater, lesser, and/or third occipital nerves [13]. Although contracted cervical muscles and cervical spondylosis are often implicated, some neurological disorders could also cause ON [14-19]. The ON in this patient may have been caused by an intramedullary lesion, as in previous cases [15-17,19]. Therefore, the exclusion of an upper cervical cord lesion in patients with ON might be recommended.


In conclusion, patients with upper cervical PSA syndrome, even without VA dissection, could present with severe occipital headache followed by ON. We have to consider MRI to examine upper spinal cord lesions in patients with severe occipital headache or ON along with disturbance of the deep sensation or bladder-bowel function.

Conflicts of Interest

There are no conflicts.



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