Sadhu V K, Handel S F, Pinto R S, Glass T F
AJNR Am J Neuroradiol. 1980 Jan-Feb;1(1):39-44.
Five cases of subdural empyema are described. Two of the cases eluded a definitive computed tomography (CT) diagnosis despite classical clinical background. Extracerebral collection with definitive border enhancement was seen in the other three cases. Mass effect, present in all five cases, was related to the extracerebral collection in three cases and diffuse cerebral edema and/or infarction in two. Angiography in four cases initially demonstrated an extracerebral collection in three and inflammatory angiospasm in two. Repeat angiography demonstrated an extracerebral collection in the fourth case. In the proper clinical setting subdural empyema should be considered even in the absence of an extracerebral collection when mass effect or an infarction pattern is seen on CT. Angiography may be diagnostic in such cases. Hopefully, newer techniques will further the diagnostic efficacy of CT in this disease.
本文描述了5例硬脑膜下积脓的病例。尽管有典型的临床背景，但其中2例病例未能通过计算机断层扫描（CT）确诊。另外3例病例可见脑外有明确边界强化的积液。所有5例病例均有占位效应，其中3例与脑外积液有关，2例与弥漫性脑水肿和/或梗死有关。4例病例的血管造影最初显示3例有脑外积液，2例有炎性血管痉挛。重复血管造影显示第4例有脑外积液。在适当的临床情况下，即使CT上未见脑外积液，但出现占位效应或梗死模式时，也应考虑硬脑膜下积脓。血管造影在这类病例中可能具有诊断价值。希望更新的技术能提高CT对这种疾病的诊断效能。
