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Case Reports
. 2018 Aug 18;12(1):237.
doi: 10.1186/s13256-018-1754-4.

Tuberculous sacroiliitis with secondary psoas abscess in an older patient: a case report

Luisa Kramer  1 , Vanessa Geib  1 , John Evison  2 , Ekkehardt Altpeter  3 , Jasmin Basedow  4 , Jan Brügger  5
Affiliations
Case Reports

Tuberculous sacroiliitis with secondary psoas abscess in an older patient: a case report

Luisa Kramer et al. J Med Case Rep. .

Abstract

Background: Tuberculosis is the leading infectious cause of death worldwide. Among native Swiss people, tuberculosis is more common in older people than in younger people. Approximately 25-30% of reported cases of tuberculosis are purely extrapulmonary; skeletal tuberculosis is reported in 3-5% of cases. The purpose of this case report is to draw attention to the diagnostic challenge of tuberculous sacroiliitis with secondary psoas abscess, as this clinical picture is very rare.

Case presentation: A magnetic resonance imaging scan of an 85-year-old (Swiss-German) Caucasian woman with chronic left-sided hip pain and limitation of hip joint movement showed a progressive destruction of her sacroiliac joint and a large collection in her left iliopsoas muscle. Drainage of the abscess revealed pus; a polymerase chain reaction assay was positive for Mycobacterium tuberculosis complex. Tuberculous sacroiliitis with secondary iliopsoas abscess was diagnosed 9 months after the start of the symptoms. Combination treatment with isoniazid, rifampicin, pyrazinamide, and ethambutol was started.

Conclusions: Sacroiliitis with secondary psoas abscess is an unusual cause of hip pain and is likely to be overlooked since joint pain of the lower extremity and lumbar pain are some of the most common complaints in older individuals. A high level of suspicion and invasive diagnostic procedures are needed for timely diagnosis of tuberculous sacroiliitis not only in immunocompromised patients living in or originating from endemic areas.

Keywords: Infection; Psoas abscess; Sacroiliac joint; Sacroiliitis; Tuberculosis.

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Conflict of interest statement

Consent for publication

Written informed consent was obtained from the patient for publication of this case report and any accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.

Competing interests

The authors declare that they have no competing interests.

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Figures

Fig. 1
Fig. 1
Abdominal magnetic resonance image showing destruction of the left iliac joint with surrounding edema (arrow) and a small collection of fluid ventral to the iliosacral joint (star)
Fig. 2
Fig. 2
Abdominal computed tomography images showing left psoas abscess (star) and destruction of the sacroiliac joint (arrow). a Coronal image; b axial image
See this image and copyright information in PMC

References

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