Zhang Yongxia, Song Lei, Zhang Han, Liu Fengjie, Hao Guo, Liu Jing, Xie Haizhu, Shi Hao
Department of Medical Imaging, Shandong Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, P R China.
Department of Radiology, Yantai Yuhuangding Hospital, Yantai, Shandong, P R China.
J Int Med Res. 2021 Mar;49(3):300060521997671. doi: 10.1177/0300060521997671.
Epidermal inclusion cysts (EICs) of the breast develop in the deep breast parenchyma, and they are very rare. Only about 10 cases have been reported in the English-language literature to date. In this report, we present a rare case of a giant EIC with infection arising within the deep breast parenchyma. Unlike a typical EIC of the breast, the EIC in the present case was a cystic and solid lesion containing a large amount of liquid within the cyst and popcorn-like calcification in the wall. In this report, we describe the contrast-enhanced spectral mammography (CESM), ultrasonography, and computed tomography findings and provide a reference for the diagnosis of EICs. To the best of our knowledge, this is the first report of the CESM findings of an EIC. Our case illustrates that CESM has excellent performance similar to that of magnetic resonance imaging and is much more effective than conventional digital mammography. Additionally, our case indicates that precise correlation of CESM with ultrasonography findings contributes to the diagnosis of EICs. This rare case with multiple imaging findings will increase the awareness of EICs in the breast parenchyma.
乳腺表皮样囊肿（EICs）发生于乳腺实质深部，极为罕见。迄今为止，英文文献中仅报道过约10例。在本报告中，我们呈现了1例发生于乳腺实质深部的伴有感染的巨大EIC罕见病例。与典型的乳腺EIC不同，本例中的EIC为囊实性病变，囊肿内含有大量液体，囊壁有爆米花样钙化。在本报告中，我们描述了对比增强光谱乳腺造影（CESM）、超声及计算机断层扫描的表现，为EIC的诊断提供参考。据我们所知，这是首篇关于EIC的CESM表现的报告。我们的病例表明，CESM具有与磁共振成像相似的优异性能，且比传统数字乳腺摄影更有效。此外，我们的病例表明，CESM与超声表现的精确关联有助于EIC的诊断。这个具有多种影像学表现的罕见病例将提高对乳腺实质内EIC的认识。
