This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Labour - normal, abnormal, malposition, malpresentation and their management, Subject name: Gynaecology & Obstetrics
Regarding Congenital toicollis - all of the following are TRUE EXCEPT:- 
Select and explain. 
A. Always caused by breech, B. Spontaneous resolution in most cases, C. Untreated can lead to plagiocephaly, D. Palpable Sternocleidomastoid tumor
A: Always caused by breech
Answer: A: Always caused by breech 
Explanation: Injury to the sternocleidomastoid muscle paicularly seen during a breech delivery leads to turning of the head towards the side of injury i.e. Toicollis. Other causes could be congenital anomaly of cranioveebral junction, klippel-feil syndrome, sternocleidomastoid tumor, postural toicollis etc. As the neck lengthens in the process of normal growth, the head is gradually turned toward the side of the injury The term tumor is a misnomer because most commonly it is congenital fibrosis within the muscle