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Stereotactic Radiosurgery for Choriocarcinoma Brain Metastases: Illustrative Case Presentation and Systematic Review.
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Stereotactic Radiosurgery for Choriocarcinoma Brain Metastases: Illustrative Case Presentation and Systematic Review. World neurosurgery Akhavan-Sigari, A., Hori, Y. S., Harary, P. M., Persad, A. R., Kassu, R., Tayag, A., Ustrzynski, L., Emrich, S. C., Park, D. J., Chang, S. D. 2024Abstract
Choriocarcinoma (CC) is a rare and aggressive form of germ cell tumor. There is limited evidence reporting outcomes in patients with primary CC and brain metastases (BM). To date, only a few single case reports have documented the use of SRS for CC BM.We retrospectively assessed patients who were treated with SRS for pure CC BM from 1998-2024. Lesion follow-up sizes and local tumor control status were evaluated after SRS treatment using RECIST criteria. A comprehensive literature search was performed for CC BM in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines.In our series, 3 patients with 7 CC BM underwent SRS. Two were male with testicular CC and one was female with gestational CC. The median diameter of the lesions was 8 mm with a median volume of 0.14 cm3 at treatment. The MRIs at 3 and 6 months demonstrated reductions in median diameters to 6 mm and 4 mm, respectively. At the last follow-up visits, one lesion had local progression at 15 months after SRS and one lesion had sustained complete response. Our systematic review yielded 249 articles. After screening, a total of 18 reports were identified for CC BM. Among these, only three single cases documented the use of SRS for CC BM.SRS is a feasible and viable approach for CC BM, particularly in cases where immediate surgical management is not necessary. This is yet the largest report evaluating the outcome of CC BM treated with SRS.
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