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Journal of Tuberculosis and Lung Disease ›› 2022, Vol. 3 ›› Issue (5): 364-370.doi: 10.19983/j.issn.2096-8493.20220099

• Original Articles • Previous Articles     Next Articles

Clinical analysis of five children with joint tuberculosis misdiagnosed juvenile idiopathic arthritis

Li Yan, Han Tongxin, Piao Yurong, Mao Huawei()   

  1. Department of Immunology, Ministry of Education Key Laboratory of Major Diseases in Children, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing 100045, China
  • Received:2022-06-12 Online:2022-10-20 Published:2022-10-14
  • Contact: Mao Huawei E-mail:maohwei@qq.com
  • Supported by:
    National Key Research and Development Program of China(2021YFC2702005);Beijing Hospitals Authority’s Ascent Plan(DFL20221001)

Abstract:

Objective: To analyze the clinical characteristics of children with joint tuberculosis misdiagnosed juvenile idiopathic arthritis (JIA), and to explore the methods of reducing the rate of misdiagnosis. Methods: We retrospectively analyzed the characteristics, diagnosis and treatment process of 5 children with joint tuberculosis who were misdiagnosed as JIA in Department of Immunology, Beijing Children’s Hospital, Capital Medical University from April 1, 2021 to April 1, 2022. Results: Of the five patients, two patients were misdiagnosed as enthesitis related arthritis, and three patients were misdiagnosed as oligoarticular JIA. All the five patients above had asymmetric arthritis in the large joints of the lower limbs, and presented with joint pain and limited movement. More than one joint with damage in four patients, and the knee was the most commonly affected (4/5). CRP and ESR increased in four patients, and PPD and T-SPOT.TB positive in four patients who were misdiagnosed. Three patients were given immunosuppressants and biological agents, with joint symptoms aggravating and imaging progressing before the diagnosis of joint tuberculosis. High resolution CT scanning was performed in five patients with joint tuberculosis. Tuberculosis was found in three patients, and multiple bone destruction was seen in joint imaging. Two patients underwent joint cavity puncture due to joint swelling, and acid fast bacillus staining was positive. Finally, all five patients were treated with anti tuberculosis drugs, and the symptoms, inflammatory indexes and imaging were improved. However, three patients had sequelae of joint contracture and muscle atrophy. Conclusion: The clinical symptoms, laboratory examination and imaging changes of children’s joint tuberculosis and juvenile idiopathic arthritis were similar. The main cause of misdiagnosis was lack of etiological examination at the lesion. Improving the detection of Mycobacterium tuberculosis in the affected joints can effectively reduce the misdiagnosis rate.

Key words: Joint tuberculosis, Juvenile idiopathic arthritis, Child, Misdiagnosis

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