This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Parathyroid & Adrenal Glands), Subject name: Surgery
Parathyroid adenoma most commonly involves which of the following sites:-- 
Select and explain. 
A. Thyroid substance, B. Superior parathyroid lobe, C. Inferior parathyroid lobe, D. In the mediastinum
C: Inferior parathyroid lobe
Answer: C: Inferior parathyroid lobe 
Explanation: Ans 'c' i.e. inferior parathyroid lobe .Parathyroid adenomas most commonly involves the inferior parathyroid glands.