Imaging features of chronic recurrent multifocal osteomyelitis (CRMO) involving the vertebral column of a lemur with subsequent paraplegia due to pathological fractures

Abstract

A seven-year-old, female ring-tailed lemur was referred for progressive non-ambulatory paraplegia. A computed tomographic (CT) scan of the whole body revealed multifocal lytic lesions involving multiple vertebrae and several pathological vertebral fractures. Necropsy and histopathology identified pyogranulomatous osteomyelitis. The imaging and histopathological findings resemble chronic recurrent multifocal osteomyelitis described in human medicine.