Itai Y, Ohnishi S, Ohtomo K, Kokubo T, Imawari M, Atomi Y
Department of Radiology, University of Tokyo Hospital, Japan.
Acta Radiol. 1987 Nov-Dec;28(6):697-701.
Cavernous hemangioma of the liver occurring in patients at high risk for liver cancer has been reviewed. Twenty-four patients with hemangioma were encountered during the past 4 years. Five lesions over 3 cm in diameter were correctly diagnosed with enhanced CT alone. Definite CT findings were however obtained in only 6 out of 19 lesions smaller than 3 cm in diameter. Ultrasonography was the most sensitive method for picking up small liver tumors even when compared with angiography, but the findings were non-specific (an echogenic mass was noted in 14 of the 19 lesions). Magnetic resonance imaging (MRI) had almost the same sensitivity as ultrasound in detecting small hemangiomas, and a prolonged T2 was highly suggestive of the diagnosis (T2 over 80 ms in 8 of 11 lesions). The results suggest that combined use of non-invasive diagnostic modalities has sufficient reliability to make a diagnosis of cavernous hemangioma even in small hepatic lesions, in patients at high risk for liver cancer.
对肝癌高危患者中发生的肝海绵状血管瘤进行了回顾性研究。在过去4年中遇到了24例患有血管瘤的患者。仅通过增强CT就正确诊断出了5个直径超过3 cm的病灶。然而，在19个直径小于3 cm的病灶中，只有6个获得了明确的CT表现。超声检查是发现小肝肿瘤最敏感的方法，即使与血管造影相比也是如此，但检查结果不具有特异性（19个病灶中有14个发现有回声团块）。磁共振成像（MRI）在检测小血管瘤方面的敏感性与超声几乎相同，T2时间延长强烈提示诊断（11个病灶中有8个T2超过80 ms）。结果表明，联合使用非侵入性诊断方法具有足够的可靠性，即使在肝癌高危患者的小肝病灶中也能诊断肝海绵状血管瘤。
