Park Ji Yeon, Yi Seong Yoon, Lee Ji Young, Kwon Tae Jung
Taehan Yongsang Uihakhoe Chi. 2022 Mar;83(2):439-443. doi: 10.3348/jksr.2021.0030. Epub 2021 Oct 18.
Hibernoma is a rare benign tumor of brown adipose tissue. Herein, we report a case of axillary hibernoma in a 53-year-old female and discuss the various radiologic findings. The US revealed a 4.5-cm well-defined oval heterogenous hyperechoic mass in the right axilla with anterior displacement of the axillary vessels. Non-enhanced chest CT showed a 5.0-cm well defined, oval, and low-attenuated mass. MRI demonstrated a 5.5-cm mass with heterogeneous intermediate-to-high signal intensity on T1-and T2-weighted images and irregular enhancement at the peripheral portion. The patient underwent an US-guided core needle biopsy and the final diagnosis was hibernoma.
冬眠瘤是一种罕见的棕色脂肪组织良性肿瘤。在此，我们报告一例53岁女性腋窝冬眠瘤病例，并讨论各种影像学表现。超声显示右腋窝有一个4.5厘米边界清晰的椭圆形不均匀高回声肿块，腋窝血管向前移位。胸部平扫CT显示一个5.0厘米边界清晰、椭圆形、低密度肿块。磁共振成像显示一个5.5厘米的肿块，在T1加权和T2加权图像上呈不均匀的中高信号强度，周边部分有不规则强化。患者接受了超声引导下的粗针活检，最终诊断为冬眠瘤。
