Radiographic features of tumefactive giant cavernous angiomas

摘要

Background. Giant cavernous angiomas (GCAs) are very rare, and imaging features of GCAs can be very different from those of typical cavernous angiomas (CAs), making them a diagnostic challenge. The purpose of the study was to evaluate the radiographic features of GCAs, with an emphasis on the differentiating features from neoplastic lesions. Methods. The neuroradiological findings of 18 patients who harbored a histologically verified GCA (CA of 4 cm or larger) were reviewed retrospectively. The magnetic resonance imaging (MRI) appearance, enhancement pattern, presence of edema or mass effect, size, and location of each lesion were recorded. When available, pertinent clinical information, including age, sex, and mode of presentation, was obtained.