PMID- 23898276 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20130730 LR - 20211021 IS - 1662-6575 (Print) IS - 1662-6575 (Electronic) IS - 1662-6575 (Linking) VI - 6 IP - 2 DP - 2013 May TI - Radiation-induced esophagitis exacerbated by everolimus. PG - 320-4 LID - 10.1159/000353309 [doi] AB - BACKGROUND: Everolimus, a potent mammalian target of rapamycin (mTOR) inhibitor, has shown anticancer activity against various types of cancer, including renal cell carcinoma (RCC); however, little information is available on the efficacy and safety of the combination of everolimus and radiotherapy. We report a case of radiation-induced esophagitis that might have been exacerbated by the sequential administration of everolimus. CASE PRESENTATION: A 63-year-old Japanese man with RCC complained of back pain, and magnetic resonance imaging revealed vertebral metastases. He received radiotherapy (30 Gy/10 fractions) to the T6-10 vertebrae. Everolimus was administered immediately after the completion of radiotherapy. One week later, he complained of dysphagia, nausea and vomiting. An endoscopic examination of the esophagus showed erosive esophagitis in the middle to lower portions of his thoracic esophagus, corresponding to the irradiation field. CONCLUSION: Clinicians should be aware that everolimus might lead to the unexpected exacerbation of radiation toxicities. FAU - Miura, Yuji AU - Miura Y AD - Departments of Medical Oncology, Toranomon Hospital, Tokyo, Japan. FAU - Suyama, Koichi AU - Suyama K FAU - Shimomura, Akihiko AU - Shimomura A FAU - Miyakawa, Jimpei AU - Miyakawa J FAU - Kobayashi, Hiroki AU - Kobayashi H FAU - Uki, Akiyoshi AU - Uki A FAU - Okaneya, Toshikazu AU - Okaneya T FAU - Takano, Toshimi AU - Takano T LA - eng PT - Case Reports DEP - 20130615 PL - Switzerland TA - Case Rep Oncol JT - Case reports in oncology JID - 101517601 PMC - PMC3725027 OTO - NOTNLM OT - Mammalian target of rapamycin OT - Radiation recall syndrome OT - Renal cell carcinoma EDAT- 2013/07/31 06:00 MHDA- 2013/07/31 06:01 PMCR- 2013/06/15 CRDT- 2013/07/31 06:00 PHST- 2013/07/31 06:00 [entrez] PHST- 2013/07/31 06:00 [pubmed] PHST- 2013/07/31 06:01 [medline] PHST- 2013/06/15 00:00 [pmc-release] AID - cro-0006-0320 [pii] AID - 10.1159/000353309 [doi] PST - epublish SO - Case Rep Oncol. 2013 Jun 15;6(2):320-4. doi: 10.1159/000353309. Print 2013 May.