This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
Hofbauer cells are associated with 
Select and explain. 
A. Single umbilical aery, B. Maternal diabetes, C. Early pregnancy, D. Erythroblastosis foetalis
C: Early pregnancy
Answer: C: Early pregnancy 
Explanation: Hofbauer cells are oval eosinophilic histiocytes with granules and vacuoles found in the placenta, which are of mesenchymal origin, in mesoderm of the chorionic villus, paicularly numerous in early pregnancy.