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From our study, we can conclude that contrary to previous reports indicating a plateau in the incidence rates of pediatric brain tumors since the mid-1980s, there has been an increase from 1973 to 2008. Potential causes include environmental carcinogens, but more research is needed to investigate the factors behind this sustained rise in incidence over the years.

Injury to the recurrent laryngeal nerve (RLN) is one of the most common iatrogenic complications of thyroid surgery. The anatomical course of the nerve also increases its susceptibility to injury and many variations have been documented in the literature. The topographical relationship of the RLN to the ligament of Berry has been extensively studied over the past decades. The consensus in the literature is divided with several authors reporting the nerve to be embedded within the ligament and others reporting a constant finding of the nerve being posterolateral to the ligament. A new operative concept has been recently introduced as a possible resolution for the conflicting reports among authors. Further investigations are needed, however, to assess its reliability and overall effects on clinical outcomes.