3.6　Metaplastic Cancer

3.6　Metaplastic Cancer

Term：adenocarcinoma and distinct spindle cell，squamous cell and mesenchymal tissue differentiation regions

Clinical manifestation：

●Clearable boundaries

●Invasive nipple with skin ulcers

●Rapid growth

Population distribution characteristics：

●＞50-year-old woman，average age 55 years old

●The proportion of the disease in invasive breast cancer＜1%

Mammography：

●Clear edges，rounded，lobed or irregular lumps

●Rare microcalcification；with ossification，visible calcification and ossification

MR：

●Flat scan T1W1/T2W1 is non-specific

●Enhance T1W1 to present typical malignant signs，showing early and rapid enhancement performance，mainly represented by circular enhancement

●Central necrosis is common

Image inspection recommendation：(https://www.daowen.com)

●Best image inspection method：Enhanced MR

Case 1

Fig.（a-d）DR female，63 years old，medical examination：right ectopic cancer

Case 2

Fig.（a-d）DR female，54 years old，medical examination：left ectopic cancer

Case 3

Fig.（a-h）MR female，45 years old，found the right breast mass for more than 3 months.Pathology：right ectopic cancer

Case 4

Fig.（a-i）MR Female，54 years old，found a left breast mass for more than 20 days.Pathology：left ectopic cancer