This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
Krukenberg adenocarcinoma of the ovary can occur as a result of metastases from all except- 
Select and explain. 
A. Stomach, B. Breast, C. Liver, D. Pancreas
C: Liver
Answer: C: Liver 
Explanation: Metastatic gastrointestinal & breast neoplasm to ovary are referred to as krukenberg tumors and are characterized by bilateral metastasis composed of mucin-producing signet-ring cells.
The primary sites are → Stomach (most common), Pancreas, Colon, Gall bladder, Breast.