This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Breast Cancer - Types and Staging, Subject name: Surgery
This appearance of mammary skin is due to 
Select and explain. 
A. Intra-epithelial cancer, B. Sub-epidermal cancer, C. Lymphatic penetration, D. Vascular embolization
C: Lymphatic penetration
Answer: C: Lymphatic penetration 
Explanation: Ans. (c) Lymphatic penetration.Observe the dotted dimpling on the skin which resembles orange peel, hence the name peau-d-orange.Peau-d-orange is due to cutaneous lymphatic blockage, leading to an appearance like orange skin, this condition is due to lymphatic penetration by tumor cells.Image source- style="font-family: Times New Roman, Times, serif">