Kumazoe Hiroyuki, Nagamatsu Yoshinori, Nishi Tatsuya, Kimura Yusuke Norman, Nakazono Takahiko, Kudo Sho
Department of Radiology, National Hospital Organization, Omuta Hospital, 1044-1 Tachibana, Omuta, 837-0911, Japan.
Jpn J Radiol. 2009 Jan;27(1):37-40. doi: 10.1007/s11604-008-0289-9. Epub 2009 Feb 8.
Hibernoma is an uncommon, benign soft tissue tumor that arises in brown adipose tissue. The computed tomography (CT) and magnetic resonance imaging (MRI) findings of hibernomas are similar to those of well-differentiated liposarcoma or angiolipoma. We report the unique appearance of a rare thoracic wall hibernoma, which appeared as a dumbbell-shaped lipomatous tumor across an intercostal region. A dynamic contrast-enhanced study on MRI revealed early enhancement, which corresponded to the branching low-signal intensity on T2-weighted images of the mass.
冬眠瘤是一种罕见的良性软组织肿瘤，起源于棕色脂肪组织。冬眠瘤的计算机断层扫描（CT）和磁共振成像（MRI）表现与高分化脂肪肉瘤或血管脂肪瘤相似。我们报告了一例罕见的胸壁冬眠瘤的独特表现，其表现为一个哑铃形脂肪瘤样肿瘤跨越一个肋间区域。MRI动态对比增强研究显示早期强化，这与肿块T2加权图像上的分支低信号强度相对应。
