Fig. 1

Macroscopic features. Grossly, angiosarcoma presents as a large cyst, filled with necrotic and hemorrhagic material a, while anaplastic carcinoma mainly presents as a solid mass with variable necrosis b

Macroscopic features. Grossly, angiosarcoma presents as a large cyst, filled with necrotic and hemorrhagic material a, while anaplastic carcinoma mainly presents as a solid mass with variable necrosis b