Feczko P J, Mezwa D G, Farah M C, White B D
Department of Diagnostic Radiology, William Beaumont Hospital, Royal Oak, MI 48073.
Radiographics. 1992 Nov;12(6):1069-78. doi: 10.1148/radiographics.12.6.1439012.
The presence of gas within the bowel wall is an uncommon condition that is typically first diagnosed by the radiologist. Although it is often seen on abdominal radiographs, computed tomography is more sensitive in demonstrating pneumatosis and its complications. There is a spectrum of disease states that produce this abnormality, ranging from the innocuous to the fatal. Its radiographic appearance is variable, particularly the location, extent, severity, and presence of pneumoperitoneum or portal venous gas. None of these imaging characteristics can be considered pathognomonic for the underlying cause of the pneumatosis. The radiologist must be aware of the different conditions associated with this entity, as well as their variable appearances.
肠壁内出现气体是一种罕见的情况，通常首先由放射科医生诊断出来。尽管它常在腹部X光片上可见，但计算机断层扫描在显示肠壁积气及其并发症方面更为敏感。有一系列疾病状态会导致这种异常，从无害到致命不等。其影像学表现各不相同，尤其是气腹或门静脉积气的位置、范围、严重程度及有无。这些影像学特征均不能被视为肠壁积气潜在病因的特征性表现。放射科医生必须了解与此病症相关的不同情况及其多变的表现。
