[Sacro-ilial tuberculosis (sacrococcygeal). Apropos of 1 case]

In a single case review the authors recapitulate the different methods for the presentation of sacro-ilial infectious and underscore imagery techniques which are of prime importance in diagnostic work. X-rays can only reveal advanced sacro-ilial bone joint lesions which are under-evaluated. In the absence of HI-Tech imagery, surgical biopsy must be widely recommended to identify the germ and allow early diagnosis.