2, 5.6 and 4.6 cm respectively, Fig. 1). Abdominal computerized tomography AZD0530 clinical trial (CT) showed multiple hypodense cavities of left liver lobe (the largest was 7 cm) with irregular, thick, ill-defined borders, presence of air in the intrahepatic bile ducts and faint, thin wall enhancement after intravenous contrast

administration (Fig. 2). Patient was suffering from multiple liver abscesses with sepsis (SIRS with organs dysfunction: temperature > 38 °C, WBC > 12,000/μL, respiratory rate > 20 breaths/min and heart rate > 90 beats/min due to infection with acute renal failure, pleural and pericardial effusions). The patient was repeatedly advised by surgeons to undergo a surgical intervention (fine needle aspiration or resection), but she denied any kind of operation. A combined drug regimen was immediately started (IV ciprofloxacin 400 mg × 2 with metronidazole 500 mg × 3). After one week, ciprofloxacin was substituted by ampicillin/sulbactam (12 g/day) and amikasin

(1 g/day) as there was no improvement. Blood cultures were negative. Fever was sustained up to 38 °C the first two weeks with gradual remission the next five buy ISRIB days. The patient was discharged afebrile five days later with per os treatment (ciprofloxacin 1 g/day and metronidazole 1.5 g/day) for two weeks. Her blood tests were normal apart from Ht (28.3%) and Hb (9.4 g/dL) and the effusions (both pleural and pericardial) were absorbed. Although the patient had a previous history of biliary disease, no underlying pathology was identified as cholangitis was not apparent (normal bilirubin), no malignancy or any other intra-abdominal inflammation was detected Bupivacaine and no recent surgery was performed on the patient, suggesting a probable cryptogenic disease. Antibodies against echinococcus and Entamoeba histolytica were twice negative (indirect

fluorescent antibody test, IFAT) with four weeks’ interval (to avoid any initial false-negative results). Although symptoms and imaging suggested pyogenic abscesses, serology was twice repeated to exclude other abscesses’ etiology as there are neither diagnostic (but only highly suggestive) clinical nor radiological criteria for their differentiation. In addition, negative blood cultures and the patient’s refusal for surgical intervention complicated differential diagnosis. Serial ultrasounds and CT scans every two months revealed gradual reduction of abscesses’ size (less than 2 cm in the last examination, Fig. 2). Liver abscesses are more commonly pyogenic or amoebic. Pyogenic abscesses may be caused mainly by ascending biliary (gallstones, cholangitis and malignancies) or portal tract sepsis (diverticulitis, inflammatory bowel disease, intra-abdominal inflammation and malignancies) and in lesser degree by superinfection of cysts or necrotic tissue, trauma or hematogenous dissemination. Nevertheless, in many cases (up to 25% of patients) no underlying cause is found and the disease is defined as cryptogenic.