Pathologically, atypical large, midium-size and small lymphocytes with variable ratio rounded the lipocytes like rosettes and were confluent to small patchs or foci or formed a reticular pattern.

• 病理上瘤细胞由异型的大、中、小淋巴细胞以不同比例围绕脂肪细胞呈花环状排列，融合成小片状或灶状呈网格状分布。