This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Twin Pregnancy, Molar Pregnancy, Gestational Trophoblastic disease and contraception in special situations (Sour Grapes!), Subject name: Gynaecology & Obstetrics
Amnion nodosum has which of the following characteristics? 
Select and explain. 
A. Generalized amnion thickening, B. Multiple, redundant folds of amnion, C. Multiple, small, tan amnionic lesions, D. Multiple, small fenestrations in the amniochorion
C: Multiple, small, tan amnionic lesions
Answer: C: Multiple, small, tan amnionic lesions 
Explanation: Amnion nodosum is a placental lesion consisting of numerous small, light-tan nodules on the amnion that overlies the placenta. It is considered a hallmark of prolonged and severe oligohydramnios. It is also associated with multiple pregnancy, perinatal moality, macerated stillbihs, and chronic twin-transfusion syndromes.