Technical Specification

 1. Obvious anatomical marks, realistic texture

2. Demonstrate lesions including: *Lump: --Hard texture, rough surface, can be considered as therioma --texture is relatively soft, flat surface, can be regarded as benign tumors *Lymphatic metastasis: from armpit and neck, trainees can touch hard texture lymph nodes: *Nipples changes: nipples are depressed, ulceration, bloody liquid overflow *Skin changes: skin is depressed, orange-peel appearance, inflammatory breast cancer

3. Clinical observation and diagnosis of breast cancer