[A Case of Perforated Sigmoid Cancer and Simultaneous Liver Metastasis with Long-Term Survival following Multidisciplinary Treatment].

A 67-year-old woman underwent emergency sigmoid resection for perforated sigmoid cancer with synchronous liver metastasis(pT4aN0M1a, pStage Ⅳa). The patient was administered 7 courses of SOX plus bevacizumab and 7 courses of FOLFIRI plus bevacizumab as adjuvant chemotherapy. Fourteen months post-surgery, PET-CT and EOB-MRI revealed a nodule in segment 8 of the liver. Based on the diagnosis of hepatic metastasis, a partial hepatectomy was performed. Two months after hepatectomy, a recurrent lesion was observed in segment 4 of the liver, and radiofrequency ablation(RFA)was performed. Nine months after RFA, chest CT revealed a solitary nodule in segment 9 of the left lung. Six months later, the size of the pulmonary nodule had increased. A diagnosis of pulmonary metastasis was established, and thoracoscopic partial pulmonary resection was performed. Histopathological examination of the hepatic and pulmonary resection confirmed metastasis from sigmoid cancer. The patient has remained recurrence-free for 5 years following the final surgery. Herein, we report a case of long-term survival in a patient with perforated sigmoid cancer and simultaneous liver metastasis after multidisciplinary treatment.