If the child's obesity is related somehow to a rapid progression of the tumor that led to the relatively early detection, the mechanism is uncertain: although various hormone and gonadotropin receptors have been detected to varying degrees on samples from the spectrum of serous ovarian neoplasms, they have not been shown definitively to promote tumor growth [15,16]. This evidence concerns the gene LGR6 and obesity due to melanocortin 4 receptor deficiency.