Transabdominal fine needle aspiration biopsy of a solitary space-occupying lesion in the liver produced smears containing irregular bundles of smooth muscle cells with granular or fibrillary cytoplasm and slightly pleomorphic nuclei. In a few bundles, aggregates of mature fat cells were present, which is characteristic for an angiomyolipoma. Histologic examination of the resected mass showed it to be a solitary angiomyolipoma of the liver. The diagnosis was further confirmed by immunohistochemical and electron microscopic studies.

译文

经腹细针穿刺活检肝脏孤立性占位病变产生的涂片,其中包含不规则的平滑肌细胞束,具有颗粒状或原纤维的细胞质和轻度多形性核。在几束中,存在成熟脂肪细胞的聚集体,这是血管平滑肌脂肪瘤的特征。切除的肿块的组织学检查显示它是肝脏的孤立性血管平滑肌脂肪瘤。免疫组织化学和电子显微镜研究进一步证实了诊断。

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