A woman in her 50s underwent abdominal total hysterectomy for uterine myoma. She was discharged from the hospital on postoperative day (POD) 6 following an uneventful postoperative course but returned to the outpatient clinic on POD 11 with chief complaints of fever and abdominal pain. Blood tests at presentation showed a C-reactive protein level of 22.95 mg/dL and a white blood cell count of 21300/μL, indicating an increased inflammatory response. Transvaginal ultrasonography and contrast-enhanced computed tomography (CT) revealed a small amount of ascites and a thickened pelvic peritoneum. Based on these findings, pelvic peritonitis was diagnosed and the patient was readmitted to the hospital. After admission, antimicrobial treatment with cefmetazole 3 g/day was started, but transvaginal ultrasonography on POD 13 (3 days after readmission) revealed an intra-pelvic abscess. The abscess was punctured under transvaginal ultrasonographic guidance and the puncture fluid was submitted for microbiological examination, followed by CT-guided drainage. At the same time, the antimicrobial regimen was changed to sulbactam/ampicillin 9 g/day and doxycycline (DOXY) 200 mg/day (100 mg/day from the following day). On POD 18 (8 days after readmission), Mycoplasma hominis was detected in the abscess culture, leading to the decision to increase the dose of DOXY to 200 mg. Subsequently, with improvement of subjective and objective symptoms and reduction of the abscess cavity, the patient was discharged from the hospital on POD 21 (11 days after readmission). Although M. hominis is a common urogenital commensal, it can be a potential pathogen in a patient with a pelvic abscess that occurs as a late postoperative complication and does not respond to beta-lactam antibiotics, so treatment decisions should be made with this organism kept in mind.

The patient was a 36-year-old primipara with no comorbidities such as diabetes or hypertension. At 35 weeks and 3 days of pregnancy, she was admitted for rupture of membranes. She vomited often during the expulsive stage of labor, so a vacuum extraction was performed. Her vital signs were normal throughout the delivery. She vomited repeatedly after the delivery but did not complain of headache or arm weakness and her level of consciousness was Japan Coma Scale I-1. Head CT revealed right caudate hemorrhage and cerebral ventricular rupture. Head MRI showed no obvious cerebrovascular abnormality, so she was followed up with symptomatic treatment. Recovery was uneventful, without neurological sequelae, and she was discharged on postpartum day 27. Cerebral hemorrhage during pregnancy is caused in many cases by comorbidities such as cerebral aneurysm, cerebral artery malformation, and pregnancyinduced hypertension syndrome. Cerebral hemorrhage may occur in pregnant women with no risk factors, even when their vital signs are stable. It is necessary to pay attention to the appearance of new symptoms, such as vomiting, around the time of delivery.

The patient was a 68-year-old woman who was diagnosed with stage IIIA cervical cancer and pyometra. Concurrent chemoradiotherapy was planned. She was admitted to our hospital 3 weeks after the initial examination due to vaginal bleeding and worsening of lower abdominal pain. On hospital day 5, she developed a fever, and free gas in the peritoneal cavity and ascites were confirmed by contrast-enhanced computed tomography. Emergency surgery was performed for suspected generalized peritonitis attributed to perforation in the digestive tract or uterus. A large amount of purulent ascites and 2 perforations in the anterior wall of the uterus, but none in the digestive tract, were observed. Peritoneal lavage and drainage were performed, and a colostomy was created. The patient was managed in the intensive care unit until postoperative day 13 due to septic shock and acute renal failure. After the peritonitis resolved, radiation therapy alone was provided, and then chemotherapy was started to treat residual lesions. Pyometra recurred, and transvaginal drainage was performed to prevent perforation of the uterus. However, a few days later, a colouterine fistula and an enterocutaneous fistula developed simultaneously, and her general condition worsened. In advanced cervical cancer complicated by pyometra, various complications can develop that are difficult to manage (e.g., uterine perforation and fistula formation due to radiation enteritis and dermatitis). 　This case demonstrates the importance of uterine drainage at appropriate timing, which can contribute to improved prognosis.