[A Case of Remarkably Effective Chemoradiotherapy for Esophageal Cancer with Multiple Bone Metastasis].

The patient was a 56-year-oldwoman. She presentedto a nearby doctor with a chief complaint of dysphagia andwas diagnosed with esophageal cancer by upper gastrointestinal endoscopy, resulting in a referral to our hospital. Upper gastrointestinal endoscopy revealeda semicircular type 1 lesion 29 to 32 cm from the incisors, andshe was diagnosedwith squamous cell carcinoma by biopsy. Computedtomography (CT)andpositron emission tomography(PET)scans revealedthe enlargement and accumulation of lymph nodes along the lesser curvature of the stomach; thus, she was diagnosed with metastasis. In addition, multiple accumulations were found in the 7th cervical vertebrae as well as in the 1st, 3rd, 4th, and 8th thoracic vertebrae, leading to the diagnosis of bone metastasis. She was finally diagnosed with middle intrathoracic esophageal cancer T2N1M1, Stage Ⅳ; thus, we performedchemorad iotherapy(CRT)with 5-FU andCDDP (FP). The main lesion was markedly reduced in upper gastrointestinal endoscopy after CRT, and no apparent malignancy was found in endoscopic biopsy, so the diagnosis was endoscopic complete response. The CT scan also showed marked reductions in both the main lesion and the lymph nodes. As for the bone metastasis, some areas of bone consolidation remained, but they were diagnosed as partial responses since they were shrunk. Since then, FP has been continuously administeredon a regular basis andit has been about 2 years without any appearance of new lesions or re-exacerbation.