ÖZET
Amaç:Rezidü ve/ veya nüks hipofiz adenomlarının tedavisinde stereotaktik radyocerrahi alternatif bir tedavi seçeneğidir. Bu yazıda kliniğimizde Cyberknife® stereotaktik radyocerrahi (SRC) uyguladığımız hipofiz adenomlu hastaların tedaviye yanıtlarının değerlendirilmesi amaçlanmıştır. Yöntemler: Dr. A.Y. Ankara Onkoloji Eğitim ve Araştırma Hastanesi Radyasyon Onkolojisi Kliniğinde, Ocak 2010-Haziran 2013 tarihleri arasında beşi fonksiyonel ve ikisi non-fonksiyonel olmak üzere toplamda yedi hipofiz adenomlu olguya SRC uygulandı. Olgularda ortanca yaş 36 (aralık, 30-60) ve olguların %71'i (n=5) erkek idi. Hemofili hastalığı olan bir hasta dışındaki tüm olgulara cerrahi uygulanmış idi. Fonksiyonel adenomlu dört olgu medikal tedaviye yanıtsız idi ve yinelemiş tümörlerinin olması nedeni ile radyocerrahi kararı alındı. İki olgu ise cerrahi sonrası kalıntı tümör nedeni ile, bir olguda cerrahi yapılamadığı için primer olarak SRC uygulandı. Reçete edilen ortanca doz, 22 Gy (aralık, 20-25 Gy), 3-5 fraksiyonda, ortanca %84 (aralık, %80-%93) izodoz ile uygulandı. Bulgular: Ortanca takip zamanı 18 ay (aralık, 14-55 ay) idi. Bir olgu (non-fonksiyonel) 55 aylık izleminde klinik ve radyolojik olarak tam yanıt gösterirken, bir fonksiyonel hipofiz adenomlu olgu ise progrese oldu. Yedi olgunun 6'sında (%86) radyolojik olarak tümör kontrolü sağlandı. Sonuç: Rezidü ve/ veya nüks hipofiz adenomlarının tedavisinde stereotaktik radyocerrahi etkin ve güvenli bir tedavi seçeneği olabilir. Anahtar Kelimeler: Cyberknife; Stereotaktik radyocerrahi; Hipofiz adenomu ABSTRACT Objective: Stereotactic radiosurgery is an alternative treatment option in recurrent or residual pituitary adenomas. In this study, pituitary adenoma patients' response to the stereotactic radiosurgery (SRS) with Cyberknife® were evaluated. Methods:, Totally 7 patients (5 functional and 2 non-functional adenoma) with pituitary adenomas underwent SRS in Dr. A.Y. Ankara Oncology Training and Research Hospital from January 2010 to June 2013. Median age was 36 (range, 30-60) and 71% of cases (n=5) were male. Surgery was applied to all patients except one who has hemophilia. SRS was applied to 4 cases with recurrent functioning adenomas that unresponsive to medical treatment,. Radiosurgery were performed in two cases due to residual tumor after surgery and one case that surgery cannot be done. The median prescribed dose was 22 Gy (range, 20-25 Gy), in 3 and 5 fractions, with median 84% isodose line (range, 80%-93%). Results: The median follow-up time was 18 months (14 to 55 months). One patient (non-functioning pituitary adenoma) showed clinical and radiological complete response after 55 months follow-up. One patient with a functioning pituitary adenoma was progressing. In 6 of the seven patients (86%) radiological tumor control were achieved. Conclusion: Stereotactic radiosurgery may be a safe and effective treatment option in the treatment of recurrent or residual pituitary adenomas.
In the current report, the authors present a case of optic nerve glioma treated with fractionated stereotactic radiotherapy (FSRT). An 11-year-old girl was referred to our clinic with increasing proptosis over a 1-year period. At that time orbital MRI revealed a 20 × 17–mm mass in the right retroorbital lipomatous tissue, and FSRT was delivered to the tumor using the CyberKnife. During the 1.5-year follow-up, ophthalmological examinations did not indicate any treatment-related severe toxicity, and posttreatment MRI demonstrated marked regression of the lesion to 13 × 10 mm. Given the scarcity of reports on this subject, the authors support more extended studies of the CyberKnife for the effective treatment of this relatively common childhood tumor.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.