Kita Ryuichi, Nakatsuji Masato, Nishijima Norihiro, Kawakami Hisato, Hatano Kiyoaki, Matsuo Hiroo, Saito Sumio, Ikeda Atsuyuki, Nasu Akihiro, Nishikawa Hiroki, Kimura Toru, Osaki Yukio, Nakashima Osamu
Department of Gastroenterology and Hepatology, Osaka Red Cross Hospital.
Nihon Shokakibyo Gakkai Zasshi. 2008 Apr;105(4):550-7.
A hepatic nodule was detected in segment 5/6 on abdominal US study in a 28 year-old male. The nodule was 7cm in diameter and the early phase of contrasted US, CT and MRI images showed spoke-wheel like vessels radiating from the center. No defect images were observed on postvascular phase contrasted US and SPIO MRI, which indicated the presence of Kupffer cells in the nodule. The nodule was diagnosed as a focal nodular hyperplasia (FNH) based on histological findings. The late phase of single level dynamic CT during hepatic arteriography (CTHA) showed corona enhancement of the nodule, which is considered to be characteristic of hypervascular metastatic liver tumors, hyperplastic nodules and HCCs. In our case, the drainage flow from the nodule may have been visualized as corona enhancement via the pathway from the sinusoid in the nodular periphery to the one in the adjacent and contiguous parenchyma.
一名28岁男性在腹部超声检查中发现肝5/6段有一个肝结节。该结节直径7厘米，超声造影、CT和MRI图像的早期显示有从中心呈辐条轮状放射的血管。在血管造影后超声和超顺磁性氧化铁MRI上未观察到缺损图像，这表明结节中存在库普弗细胞。根据组织学结果，该结节被诊断为局灶性结节性增生（FNH）。肝动脉造影期间单层动态CT的晚期（CTHA）显示结节有晕环强化，这被认为是高血供转移性肝肿瘤、增生性结节和肝癌的特征。在我们的病例中，结节的引流血流可能通过从结节周边的窦状隙到相邻和连续实质中的窦状隙的途径被显示为晕环强化。
