[Pubmed] A case of ectopic cervical thymoma with myasthenia gravis mimicking a parathyroid tumour

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Respirol Case Rep. 2022 Oct 25;10(11):e01052. doi: 10.1002/rcr2.1052. eCollection 2022 Nov.

ABSTRACT

Reports of cervical thymoma with myasthenia gravis are rare. In addition, 99mTc-MIBI (methoxyisobutylisonitrile:sestamibi) scintigraphy is a useful diagnostic examination for enlarged parathyroid tumours; however, there are a few reports of its accumulation in thymoma. Among them, there are no reports of cervical thymomas with 99mTc-MIBI accumulation complicated by myasthenia gravis. In this study, we performed surgery on a patient with preoperative myasthenic crisis accompanied by a cervical thymoma and a parathyroid tumour. Preoperatively, the cervical mass was determined to be a parathyroid tumour and was complicated by myasthenia gravis without thymic tumour. However, a pathological examination revealed that the cervical tumour with 99mTc-MIBI accumulation was a Type B2 thymoma, and a parathyroid tumour was identified in the vicinity. We report a very rare case in which symptoms improved with surgery.

PMID:36303708 | PMC:PMC9593103 | DOI:10.1002/rcr2.1052


Source: https://pubmed.ncbi.nlm.nih.gov/3630370 ... 5&v=2.17.8