This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T., Subject name: Pathology
Krukenberg tumour of ovary is due to carcinoma of 
Select and explain. 
A. Stomach, B. Lung, C. Central nervous system, D. Thyroid
A: Stomach
Answer: A: Stomach 
Explanation: Ans. (a) Stomach(Ref: Robbins 9th/pg 771; 8th/pg 785)Metastasis from stomach cancer Occurs to the liver (first organ to be affected) followed by lungs, bone, ovary (where it is known as Krukenberg's rumor), periumbilical lymph nodes (Sister Mary Joseph nodule), peritoneal cul-de-sac (Blumer's shelf palpable on rectal or vaginal examination) and left supraclavicular lymph node (Virchow's lymph node