Teh Jyh Shinn, Weng Ching-Yao, Chang Ying-Yueh, Yeh Yi-Chen, Huang Chien-Sheng
Department of Surgery Taipei Veterans General Hospital Taipei Taiwan.
Department of Radiology Taipei Veterans General Hospital Taipei Taiwan.
Respirol Case Rep. 2021 Sep 21;9(10):e0853. doi: 10.1002/rcr2.853. eCollection 2021 Oct.
Myolipoma is a rare benign lipomatous soft tissue neoplasm, occurring most frequently in adults in the abdomen, pelvis or retroperitoneum. We presented a case of a 39-year-old female with an epipleural lesion at the left paraspinal region identified using computed tomography. Magnetic resonance imaging revealed a fat-containing lesion attached to the pleura over the left paraspinal region. Surgical resection was performed, and histopathological analysis revealed a tumour composed of interlacing bundles of neoplastic smooth muscle cells with low cellularity and rare mitotic figures intermixing with mature adipocytes. The presence of oestrogen and progesterone receptors in smooth muscle cells was noted. The mass was reported as myolipoma. To the best of our knowledge, this case is the first description of an intrathoracic myolipoma.
肌脂肪瘤是一种罕见的良性脂肪瘤性软组织肿瘤，最常发生于成年人的腹部、盆腔或腹膜后。我们报告了一例39岁女性，通过计算机断层扫描发现左侧椎旁区域有一个胸膜外病变。磁共振成像显示左侧椎旁区域有一个附着于胸膜的含脂肪病变。进行了手术切除，组织病理学分析显示肿瘤由交错排列的肿瘤性平滑肌细胞束组成，细胞密度低，有丝分裂象罕见，与成熟脂肪细胞混合存在。注意到平滑肌细胞中存在雌激素和孕激素受体。该肿块被报告为肌脂肪瘤。据我们所知，该病例是胸腔内肌脂肪瘤的首例描述。
