Generalized peritonitis secondary to spontaneously perforated pyometra in elderly women:two cases with different clinical courses and surgical approaches and review of the literature.

We describe two cases of spontaneously perforated pyometra (SPP) in elderly women treated with two different surgical approaches. An 88-year-old woman underwent emergency laparotomy for presumed diagnosis of gastrointestinal (GI) tract perforation. During surgery, SPP and a tumor of the sigmoid colon were identified. Total hysterectomy and sigmoid colon resection were performed. Despite exhaustive postoperative treatments, the patient died on postoperative day (POD) 189 due to peritonitis and pneumonia. A 93-year-old woman with acute abdomen was diagnosed with severe pyometra and primarily treated with transcervical drainage. Due to progression of generalized peritonitis, laparoscopic surgery was performed. Intraoperatively, scar from a uterine body perforation was identified, leading to the diagnosis of SPP. Only peritoneal irrigation and drainage were performed, in consideration of her advanced age. She improved and was discharged from the hospital on POD 35. The prognosis for SPP is sometimes poor, especially in older women. Minimally invasive surgical intervention might be considered for primary treatment in such cases.