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Liver abscesses secondary to Salmonella species are rarely described in the general population. We herein describe a case of a liver abscess caused by CTX-M-55-type extended-spectrum β-lactamase (ESBL)-producing Salmonella enteritidis, which has not been reported in the literature. A 54-year-old male was admitted due to a high fever and was clinically diagnosed with a liver abscess. Culture of the fluid from the liver abscess revealed CTX-M-55-type ESBL-producing S. enteritidis. Although the patient underwent percutaneous transhepatic abscess drainage and antibiotic therapy, he died one month later. It should be noted that liver abscesses are potentially fatal depending on the causative pathogen.

A 60-year-old woman was referred to our hospital with swelling of the right leg. After surgery, leiomyosarcoma of the right leg was diagnosed. Computed tomography showed two hypovascular masses in the pancreatic body and tail that were heterogeneously enhanced compared with the pancreatic parenchyma. On endoscopic ultrasonography, the tumors in the pancreatic body and tail both exhibited regular margins and were visualized as well-circumscribed masses with uneven interiors. Distal pancreatectomy was performed under a presumptive diagnosis of metastatic pancreatic leiomyosarcoma diagnosed based on the findings of EUS-FNA. On laparotomy, peritoneal washing cytology yielded negative results, and no dissemination was observed. Ultimately, metastatic pancreatic leiomyosarcoma was histologically diagnosed.

Yersinia enterocolitica (YE) infection is a rare cause of intestinal intussusception, especially in adults. We herein, report a case of adult intussusception due to YE enterocolitis. A 24-year-old woman was admitted because of severe abdominal pain. She was clinically diagnosed with ileocolic intussusception on the basis of the findings of computed tomography (CT) and a gastrografin enema. Manual surgical reduction was sufficient to alleviate the intussusception. A histological examination of the lymph nodes around the ileocecum excluded lymphoma. Serological testing revealed that the cause of the intussusception was a YE infection. The patient's postoperative course was good and no recurrence was seen during the follow-up.