Case 2010 - 6 Julia Kofler, MD, Geoffrey Murdoch, MD PhD University of Pittsburgh Clinical history 52 yo male H/o Hodgkin lymphoma 2006 - Chemotherapy - Autologous stem cell transplant 02/2009 - Mediastinal radiation 07/2009 09/2009: dyspnea, cough, low-grade fever, chest wall pain and rash - Chest x-ray and CT c/w radiation pneumonitis Mental status changes - Head CT unremarkable One day later, patient collapsed, minimally responsive with seizure-like activity Diagnosis? VZV VZV VZV infections of the nervous system Inflammation, hemorrhage and necrosis in spinal ganglia Polyradiculitis Myelitis Meningitis Encephalitis - Large vessel disease - Small vessel vasculopathy - Ventriculitis/periventriculits - Mixed patterns Large vessel disease Vessel wall inflammation, necrotizing vasculitis, thrombosis Bland or hemorrhagic infarctions in distribution of large or medium-sized arteries Vasculopathy with fibrointimal proliferation but without inflammation Immunocompetent and immunosuppressed patients Kleinschmidt-DeMasters, Arch Pathol Lab Med 2001 Small vessel vasculopathy Variable lymphocytic infiltrate and endothelial swelling Often associated with infection of oligodendrocytes Mixed ischemic/demyelinating lesions near cortical gray/white junction Intranuclear viral inclusions more readily identified Lesions often lack significant inflammation Kleinschmidt-DeMasters, Arch Pathol Lab Med 2001 Ventriculitis/periventriculitis Rare in pure form Infection of ependymal cells VZV ISH Kleinschmidt-DeMasters, Arch Pathol Lab Med 2001 Final diagnosis Varicella zoster radiculitis, meningitis and vasculitis associated with intraparenchymal hemorrhage References Kleinschmidt-DeMasters BK, Gilden DH. Varicella zoster virus infections of the central nervous system. Clinical and pathologic correlates. Arch Pathol Lab Med 2001; 125:770-780 Kleinschmidt-DeMasters BK, Amlie-Lefond C, Gilden DH. The patterns of Varicella zoster virus encephalitis. Hum Pathol 1996; 27:927-938. Gilden D, Cohrs RJ, Mahalingham R, Nagel MA. Varicella zoster virus vasculopathies: Diverse clinical manifestations, laboratory features, pathogenesis and treatment. Lancet Neurol 2009; 8:731-740.