Hepatocellular carcinoma with a "nodule-in-nodule" appearance reflecting an unusual dilated pseudoglandular structure |
| |
Authors: | Ishida Yusuke Nagamatsu Hiroaki Koga Hironori Yoshida Hiroshi Kojiro Masamichi Sata Michio |
| |
Institution: | Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Karume, Japan. ishida_yuusuke@kurume-u.ac.jp |
| |
Abstract: | We present a case of hepatocellular carcinoma (HCC), showing an atypical "nodule-in-nodule" appearance on ultrasonogram (US). In general, a "nodule-in-nodule" appearance is found as a hyperechoic tumor containing a hypoechoic nodule. In the present case, however, there was a hyperechoic subnodule in the center of the tumor, which was surrounded by a hypoechoic tumor area. Histologically, the subnodule consisted of moderately differentiated HCC with a markedly dilated pseudoglandular structure, and the outer tumor consisted of well-differentiated HCC with a thin-trabecular pattern. It should be noted that there is a rare HCC with dilated pseudoglandular structure showing the inversed "nodule-in-nodule" appearance. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|