Chickenpox with Delayed- Contralateral Hemiparesis Caused by Cerebral Angiitis John Kamholz, MD, and Gerald Tremblay, M D Chickenpox and herpes zoster ophthalmicus are caused by the same virus. Herpes zoster ophthalmicus can be followed by contralateral hemiparesis, which is thought to be caused by spread of varicella-zoster virus to blood vessels contiguous to the trigeminal nerve and its branches. We report what we believe to be the first case of a patient with chickenpox followed by hemiparesis in whom there was angiographic evidence of an associated vasculitis similar to that found with herpes zoster ophthalmicus. Kamholz J, Tremblay G: Chickenpox with delayed contralateral hemiparesis caused by cerebral angiitis. Ann Neurol 18:358-360, 1985 Herpes zoster ophthalmicus (HLO)with delayed contralateral hemiparesis is a well-defined syndrome. Thirty-four cases have been reported in the Englishlanguage literature, and characteristic historical, angiographic, and pathological features have been described (2, 51. A focal cerebral angiitis ipsilateral to the herpes zoster eruption is the cause of the hemiparesis (91. The pathogenesis of the vasculitis is unknown but is thought to be a direct extension of viral infection to the blood vessels on the affected side via the ophthalmic nerve f3, 81. Although both varicella and zoster infections are caused by the same agent, no case of delayed hemiparesis appears to have been reported in association with primary varicella infection. Case Report Six weeks after the onset of chickenpox, a 6-year-old girl developed tingling and weakness in her left arm that resolved within several minutes. Another brief episode of tingling and weakness in the left arm associated with slurred speech occurred a few days later. Three days prior to admission she began to drag her left leg and developed slurred speech and clumsiness of her left hand. Upon admission, healing scars from chickenpox were evident on her face, extremities, and From the Department of Neurology, Hospital of the University of Pennsylvania and Childrens’ Hospital of Philadelphia, Philadelphia, PA 19104. Received Nov 19, 1984, and in revised form Feb 28, 1985. Accepted for publication Feb 28, 1985. Address reprint requests to Dr Kamholz, Laboratory of Molecular Genetics, NINCDS, National Institutes of Health, Bethesda, MD 20205. 358 lower right eyelid. Findings of the general physical examination were normal. She had a left hemiparesis, greater in her face and arm than in her leg, and a left Babinski’s response. Tendon reflexes and sensory tests were normal. Normal laboratory studies included a complete blood count, urinalysis, electrocardiogram, echocardiogram, liver function tests, and measurements of serum electrolytes, erythrocyte sedimentation rate, rapid plasma reagin, and antinuclear antibody. Cerebrospinal fluid (CSF) contained 50 red blood cells per mm3 and 13 white blood cells per mm3 (all mononuclear),a glucose value of 59 mgldl, and a protein level of 16 mgldl. Computed tomography (CT) showed a hypodensity in the region of the right basal ganglia (Fig 1A) and several small areas of enhancement in the right centrum semiovale (Fig 1B). An electroencephalogram showed slowing over the right hemisphere. Arteriography demonstrated marked stenosis of the proximal middle and anterior cerebral arteries on the right side (Fig 2), with evidence of distal branch occlusions in both territories. The left carotid artery and its branches were normal. Discussion The clinical course of the hemiparesis and the radiographic and CSF findings in our patient are typical of those found in HZO with delayed hemiparesis (2, 5 , 91. Neurological symptoms began six weeks postexanthem, and CT showed both hypodense and enhancing lesions. There was a mild CSF mononuclear cell pleocytosis, and the arteriogram demonstrated segmental narrowing of the MI and A2 branches of the middle cerebral and anterior cerebral arteries, respectively. Central nervous system (CNS) complications of primary varicella infection are rare [7] but include diffuse meningoencephalitis, acute cerebellar ataxia, transverse myelitis, polyradiculoneuropathy, optic neuritis, and Reye’s syndrome [l, 4, 7, lo]. The pathophysiological basis of these disorders is not known, although both direct viral infection and immune mechanisms have been postulated (61. Immune dysfunction is not associated with the CNS complications of chickenpox (4, lo], unlike some of the CNS complications of herpes zoster infection (61. Both meningoencephalitis and transverse myelitis have been shown to be associated with a necrotizing inflammation of small vessels [lo]. However, pathological or angiographic evidence for a large vessel vasculitis as a complication of primary varicella infection is lacking (4, lo]. In our patient, there was no clinical evidence for an alteration in immune function, althdugh a subclinical immunological deficiency has not been excluded. Until the presentation of her neurological symptoms, there was nothing unusual about the course of her varicella infection. However, there may have been accidental corneal inoculation with virus from varicella lesions on the lower eyelid on the side of the vasculitis. No eyelid or eye lesions were found in the opposite side. Corneal A B Fig I . Contrast computed tomographic images showing (A) hypodensity in the area of the right basal ganglia and (B) enhancing lesions in the centrum semiwale. Fig 2. Right carotid arteriograms showing segmental narrowing in the proximal branches of both the middle and anterior cerebral arteries (arrows). Brief Communication: Kamholz and Tremblay: Chickenpox with Delayed Hemiparesis 359 inoculation could provide a more efficient route of viral spread into the brain than inoculation from a cutaneous source and could have led to a higher local viral concentration near the bifurcation of the internal carotid artery, thus causing vasculitis by contiguous spread to these vessels. A less likely possibility is that our patient had early reactivation of latent varicellazoster virus in the trigeminal ganglion, which could also have led to an increase in local viral concentration and vasculitis. The clinical circumstances in this patient thus support the current notion that varicella-zosterassociated angiitis is due to contiguous spread of the virus to adjacent cerebral blood vessels. The rarity of vasculitis in large vessels in chickenpox could be explained by the usually relatively low viral concentration near the large cerebral vessels. Unusual circumstances such as corneal inoculation with varicella-zoster virus may thus be necessary to cause cerebral angiitis. This patient represents what we believe to be the first documented case of primary varicella-associated vasculitis in whom the radiographic findings are typical of the adult syndrome of HZO associated with contralateral hemiparesis. References 1. Appelbaum E, Rachelson MH, Dolgopol VB: Varicella encephalitis. Am J Med 15:223-230., 1953 2. Bourdette D N , Rosenberg NL, Yatsu FM: Herpes zoster ophthalmicus and delayed ipsilateral cerebral infarction. Neurology (Cleveland) 33:1428-1432, 1983 3. Doyle PW, Gibson G , Dolman CL: Herpes zoster ophthalmicus with contralateral hemiplegia: identification of cause. Ann Neurol 14:84-85, 1983 4. Griffith JF, Salam MV, Adams RD: The nervous system diseases associated with varicella. Acta Neurol Scand 46:279-300, 1970 5. Hilt DC, Buchholz D, Krumholz A, et al: Herpes zoster ophthalmicus and delayed contralateral hemiparesis caused by cerebral angiitis: diagnosis and management approaches. Ann Neurol 14:543-553, 1983 6. Jamsek J, Greenberg SB, Taber L, et al: Herpes zosterassociated encephalitis: clinicopathologic report of 12 cases and review of the literature. Medicine G2:81-97, 1983 7. Johnson R, Milbourn PE: Central nervous system manifestations of chickenpox. Can Med Assoc J 1022331-834, 1970 8. Linnemann CC, Alvira MM: Pathogenesis of varicella-zoster angiiris in the CNS. Arch Neurol 37:239-240, 1980 9. MacKeozie RA, Forbes GS, Karner, WE: Angiographic findings in herpes zoster arteritis. Ann Neurol 10:458-464, 1981 10. McKendall RR, Klawans HL: Nervous system complications of varicella-zoster virus. In Vinken PJ, Bruyn GW (eds): Handbook of Clinical Neurology, Vol 34. New York, Elsevier, 1978, pp 161-184 The Auditory Pathology of Brain Death as Revealed bv Auditorv Evoked Po&ntials J Kimitaka Kaga, MD,* Akiyu Takamori, MD," Toshio Mizutani, MD,? Taiji Nagai, MD,? and Roger R. Marsh, PhDf A case of brain death is reported in which the auditory brainstem response, middle latency component, and slow vertex response were recorded before and after the cessation of cortical activity, and in which histological examination of the temporal bone and central auditory pathways was performed post mortem. Brain death of at least 48 hours' duration was demonstrated by neurological examination, flat electroencephalographic recording, and persistent absence of auditory evoked responses. The postmortem examination was performed 3 hours after death. The pathological studies of the whole length of the auditory pathway revealed total autolysis of the organ of Corti, marked cell loss in the dorsal cochlear nucleus, and moderate cell loss in other nuclei of the central auditory pathway. It should be considered that total autolysis of the organ of Corti and severe cell loss of the cochlear nucleus may occur if the auditory brainstem response becomes absent in comatose patients. Kaga K, Takamori A, Mitutani T, Nagai T, Marsh RR: The auditory pathology of brain death as revealed by auditory evoked potentials. Ann Neurol 18:360-364, 1985 In the evaluation of brain death, auditory brainstem response (ABR) testing, unlike the electroencephalogram (EEG), has the potential to define brainstem death. Generally the appearance of only waves I and I1 on ABR testing implies lesions at the level of the cochlear nucleus of the brainstem, and the absence of an ABR implies loss of cochlear function or lower brainstem function, or both [I, 3 , 61. Although knowledge of the correlates of auditory disorders and ABR is very important for understanding brain death, little information is available. From the *Department of Otolaryngology, Teikyo University School of Medicine, Tokyo, the t Department of Pathology, Tokyo Metropolitan Institute for Neurosciences, Tokyo, Japan, and the $Department of Otolaryngology and Human Communication, Children's Hospital of Philadelphia, Philadelphia, PA. Received Feb 1, 1985. Accepted for publication Feb 4 , 1985. Address reprint requests to Dr Kaga, Department of Otolaryngology, Teikyo University School of Medicine, Kaga 2-11-1, Itabashiku, Tokyo 173, Japan. 360