[Granulomatous spondylodiscitis: due mainly to tuberculosis but lymphoma cannot be excluded].

Lower back pain is due to multiple etiologies that make diagnosis difficult. Primitive spinal lymphoma is rare and its diagnosis often requires ultrasound-guided biopsy. A 30-year old man hospitalized for inflammatory lumbago evolving within the context of an impaired general condition. Phisical examination revealed pain on palpation of the L2-L3 vertebral apophysis without peripheral tumor syndrome. Laboratory tests showed an inflammatory syndrome. Morphological assessment was in favour of a spondylodiscitis. The first biopsy showed granulomatous osteitis.Clinical and radiological worsening during antibacillary treatment led to reconsider the original diagnosis and a second biopsy confirmed the diagnosis of lymphoma. The diagnosis of skeletal tuberculosis in particular spinal tuberculosis requires bacteriological or histological confirmation in order not to overlook a primitive bone lymphoma.