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VALUE OF MAGNETIC RESONANCE IN THE DIAGNOSIS OF JOINT TUBERCULOSIS
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Abstract
Purposes: To evaluate the value of MRI in the diagnosis of tuberculous arthritis. Material and methods: Analysis of MRI imaging characteristics of 07 cases of tuberculous arthritis with ultrasound guided synovial biopsy and confrontation the MRI characteristics with biopsy results. Results: From September 2020 to October 2022, 7 patients with tuberculous arthritis had MRI scan and then underwent the ultrasound guided synovial biopsy at Hanoi Medical University Hospital. Among them are 01 shoulder joint, 1 elbow joint, 1 wrist joint, 2 hip joints and 2 ankle joints. The mean age of the patients was 60±15.5, the highest was 75 years old, the lowest was 35 years old. There are 5 female patients and 2 male patients. The MRI shows that the average synovial thickness was 8.9±6.7mm, the largest thickness was 24mm, the smallest was 5.6mm. The synovial thickening was regular and strongly Gadolinium enhancement in all cases. Synovial fluid was only present in 1/7 cases. Bone marrow erosion and edema were seen in 6/7 cases. There were no cases of bone chips. Edema with soft tissu abscess was observed in 3/6 cases. Biopsy analysis results showed that all samples had negative bacterial cultures. There were 6 patients positive on histopathological analysis, 4 patients positive for TB PCR. Conclusion: The most common findings on MRI of tuberculous arthritis were bone marrow erosion and edema. Other signs were less common and may be seen in pyogenic bacterial infectious arthritis
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Keywords
Magnetic resonance, tuberculosous arthritis, synovial membrane.
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