Conclusion Bases on the pathology characteristic of SCMPOI, the authors suggest that the developmental disturbance of SCM may lead to the formation of congenital muscular torticollis.

• 结合婴幼儿胸锁乳突肌假性肿瘤病理变化，我们推测婴幼儿胸锁乳突肌假性肿瘤是由于胸锁乳突肌发育紊乱引起，而不是创伤。