This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology and breast, Subject name: Anatomy
Peau d' orange is due to - 
Select and explain. 
A. Secondary infection, B. Blockage of subdermal lymphatics, C. Invasion of skin with malignant cells, D. Aerial obstruction
B: Blockage of subdermal lymphatics
Answer: B: Blockage of subdermal lymphatics 
Explanation: Peaud's orange is produced due to obstruction of superficial lymph vessels by cancer cells. This causes edema of the skin giving rise to an appearance like that of the skin of an orange (Peau'd orange appearance) Ref - Srb's manual of surgery 5e p534