Keswani, PGupta, RSingh, K PJuneja, PChablani, P1993-03-012009-05-301993-03-012009-05-301993-03-01Keswani P, Gupta R, Singh KP, Juneja P, Chablani P. Unilateral ataxia following herpes zoster of spinal C4 segment. Journal of the Association of Physicians of India. 1993 Mar; 41(3): 178http://imsear.searo.who.int/handle/123456789/88328Focal lesions of central nervous system are extremely rare following cutaneous herpes zoster. A 55 year old male developed cerebellar speech, right sided ataxia and intention tremor, three weeks after herpes zoster of right spinal C4 segment. Clinical examination and investigations confirmed a focal vascular lesion in the midbrain suggestive of granulomatous angiitis which can cause focal neurological defect after herpes zoster.engCerebellar Ataxia --physiopathologyCerebellar Nuclei --physiopathologyFunctional Laterality --physiologyHerpes Zoster --physiopathologyHumansMaleMiddle AgedMuscle Hypotonia --physiopathologyNeural Pathways --physiopathologyNeurologic ExaminationRed Nucleus --physiopathologyTegmentum Mesencephali --physiopathologyCase Reports