| zoonotic onchocerca lupi infection in a 22-month-old child in arizona: first report in the united states and a review of the literature. | a 22-month-old girl presented with neck pain and stiffness and magnetic resonance imaging showed an extradural mass extending from c2 through the c4 level with moderate to severe compression of the cord. a left unilateral c2-c4 laminectomy was performed revealing an extradural rubbery tumor; a small biopsy was obtained. examination of stained tissue revealed the presence of a parasitic worm that was identified as a gravid female onchocerca lupi. a magnetic resonance imaging at 7 weeks follow-up ... | 2013 | 23382171 |