Tuberculous Arthritis of the Knee with Rice Body Formation: A Report of a Rare Case

الملخص EN

In this report, we present the case of a 53-year-old man with rice body formation in the right knee caused by tuberculous arthritis (TB arthritis).

The patient visited our hospital in January 2018 with a seven-month history of swelling and pain in the right knee.

He had no previous history of tuberculosis, and the results of the routine laboratory tests were within normal limits; he also tested negative for rheumatoid factor.

Magnetic resonance (MR) imaging revealed multiple rice bodies in the right knee, measuring 5-8 mm.

He underwent an arthroscopic operation in the right knee in January 2018 and received antituberculosis polytherapy for 6 months.

He was followed-up for more than 01 year.

The patient regained good function of the operated knee with no evidence of recurrence during the last follow-up in February 2019.

Conclusion.

The biggest challenge in diagnosing tuberculosis arthritis is the consideration of its possibility in the differential diagnosis, not only in endemic countries where tuberculosis is frequent.

A high level of suspicion for TB should be maintained for every infection of the knee joint, particularly in the case of intra-articular rice bodies.