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: Surgery
Cystic hygroma ? 
Select and explain. 
A. Should be left alone, B. Excision of cyst at an early age, C. Spontaneous regression, D. Manifests in 2nd - 3rd decade
B: Excision of cyst at an early age
Answer: B: Excision of cyst at an early age 
Explanation: Ans. is 'b' i.e., Excision of cyst at an early age Spontaneous regression may occur rarely in cystic hygroma