- A 17-year-old female presented with 2 months of lower back pain and 1 month of intermittent fever. On examination, she had tenderness over the sacral region and sacroiliac joints. Tests indicated sacroiliitis. - Imaging and biopsy results suggested tuberculous infection of the sacroiliac joints. The patient was started on anti-tuberculosis treatment and showed improvement of symptoms. - The case report describes an unusual presentation of sacroiliac joint tuberculosis in a young female patient, initially diagnosed as non-tuberculous sacroiliitis.

1. AN INTERESTING CASE OF BACKPAIN Prof.K.H.Noorul Ameen’s Unit Dr.E.Thirulogachandar

9. TESTS FOR SACROILITIS

15. X-RAY AP VIEW OF BOTH SACROILIAC JOINTS

30. CONTRAST OF SPONDYLOARTHROPATHY Feature Ankylosing Spondylitis Enteropathic Arthritis Psoriatic Arthritis Reactive Arthritis Male-female ratio 3:1 1:1 1:1 10:1 HLA association B27 B27(axial) B27(axial) B27 Joint pattern Axial Axial and peripheral Axial and asymmetrical peripheral Axial and asymmetrical peripheral Sacroiliac Symmetrical Symmetrical Asymmetrical Asymmetrical Syndesmophyte Smooth, marginal Smooth, marginal Coarse, nonmarginal Coarse, nonmarginal Eye Iritis +/- 0 Iritis and conjunctivitis Skin 0 0 Psoriasis Keratoderma Rheumatoid factor 0 0 0 0

37. Freire M , Graña J , Míguez E , Pombo F , Atanes A , de Toro J , García Porrua C , Galdo B . An Med Interna. 1995 May;12(5):255-6 Sacroilitis as initial manifestation of miliary tuberculosis

38. Enferm Infecc Microbiol Clin. 1999 Feb;17(2):99-101. [Disseminated tuberculosis manifesting as a clinical picture of sacroiliitis] [Article in Spanish] Maestre JR , Quesada R , Fernández A .