AI Article Synopsis
- Inflammatory myofibroblastic tumor (IMT) is a rare type of tumor that usually appears in the lungs but can also occur in other areas like the brain.
- A 55-year-old patient was treated for nasopharyngeal IMT that recurred in the skull base and underwent surgery, but imaging revealed further metastasis.
- After receiving a combination of immunotherapies, the patient showed significant improvement, highlighting the potential effectiveness of immune-targeted treatments for rare intracranial IMT.
Article Abstract
Inflammatory myofibroblastic tumor (IMT) is a rare mesenchymal tumor that can develop in numerous organs, most commonly in the lungs and rarely in the brain. Here, we reported a 55-year-old patient with nasopharyngeal IMT and the recurrence in the skull base, slope and pterygoid sinus who underwent cranial base and slope tumor resection. Postoperative magnetic resonance imaging (MRI) and multiplex immunohistochemistry (mIHC) showed tumor recurrence and metastasis to the intracalvarium. While genetic testing revealed no significant related gene mutations, tertiary mutations in NSD1 and SOX9 genes were identified in the tumor tissues. The patient achieved partial remission after receiving 7 cycles of immunotherapy (toripalimab 240 mg for 1 cycle followed by 6 cycles of sintilimab 200 mg), and MRI examination indicated an almost complete remission of intracranial IMT after 16 cycles of immunotherapy. In summary, the novel class of immune-targeted agents may be effective in clinical management of rare intracranial IMT.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8985701 | PMC |
| http://dx.doi.org/10.2147/OTT.S343562 | DOI Listing |
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