Asymptomatic pneumoperitoneum or pneumatosis cystoides intestinalis? Easy to make a mistake.

Pneumoperitoneum refers to the presence of intraperitoneal free gas outside the viscera. A perforation of a hollow viscus is the main cause and usually indicates a surgical emergency. However, some case of pneumoperitoneum can be completely asymptomatic and secondary to benign conditions that do not require any surgical intervention. In this situation a misleading diagnosis of pneumoperitoneum may occur. The authors are going to present a case of a 79-year-old man with an asymptomatic pneumoperitoneum incidentally detected by CT-scan and subsequently revealed to be pneumatosis cystoides intestinalis (PCI) at diagnostic laparoscopy. PCI is a rare condition characterized by the presence of gas-filled cyst in the submucosa/subserosa of the bowel wall that can easily mimic pneumoperitoneum on radiological imaging. A thorough examination of radiological findings is crucial in preventing unnecessary surgical procedures that may expose patients to potential associated morbidities.

Selection criteria for non-surgical treatment of liver injury in adult polytraumatized patients.

Conservative treatment of hepatic trauma is currently implemented in 80-90% of cases with a success rate of 92.5% and is mainly based on the haemodynamic status of the patients. We conducted a retrospective study of 71 patients with hepatic trauma from January 1993 to April 2001 and reviewed our experience with surgical and conservative treatment, also considering associated extrahepatic lesions. Fifty-three (74.6%) patients with liver trauma underwent celiotomy and 18 (25.3%) were treated conservatively. Haemodynamic instability was the most common indication for surgery (34 patients). Eighteen (52.9%) patients required an extrahepatic surgical procedure. Nineteen (35.8%) patients were haemodynamically stable and the indications for surgery in these cases were penetrating trauma in 6, large haemoperitoneum in 12, and diaphragmatic rupture in 1. The overall mortality in the operated group was 15%, but the liver-related mortality rate was 7.5%. The success rate for conservative management was 88.8%, with mortality 0% and morbidity 11%. The patients managed conservatively had grades of injury (I-III) similar to the haemodynamically stable operated patients (94.4% vs 94.7%), whereas the haemoperitoneum was larger in the operated group (63.1% vs 11.1%). Non-operative management is the preferred treatment option in haemodynamically stable patients with limited haemoperitoneum, regardless of the grade of the hepatic lesion, and without severe intra-abdominal injuries.