ISSN: 1859 - 2872
MRI features of thymoma associated with types and stages in myasthenia gravis patients
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Abstract
Objective: To discribe the MRI characteristics of the thymoma in patients with myasthenia gravis. To identify image findings associated with types and stages of thymoma. Subject and method: A prospective study was performed in 34 myasthenia gravis patients with thymoma underwent surgery from August 2014 to February 2017. Differences in features between types and stages were tested using Fisher’s exact test and Student’s T-test. Result: Majority thymoma had round or oval figure. The thymoma had length of 40 ± 14mm, width of 25 ± 7mm, thickness of 47.7 ± 17.5mm and CSR of 1.02 ± 0.07. Invasive thymoma had length of 43.6 ± 13.9mm, 63.6% lobulated, 59.1% necrosis cyst. Conclusion: MRI features can differentiate between type A and other types, non-invasive and invasive thymomas.
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References
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