The discrimination between ordinary lipoma and atypical lipomatous tumor/well-differentiated liposarcoma (ALT/WDL) is a common diagnostic challenge in diagnostic soft tissue pathology.

• 普通型脂肪瘤和非典型/高分化脂肪肉瘤(ALT/WDL)的鉴别诊断是软组织病理学诊断工作中的一个难点。