Correction to:

Chapter 10 in: S. D. Billings et al. (eds.), Soft Tissue Tumors of the Skin, https://doi.org/10.1007/978-1-4939-8812-9_10

The original version of Chapter 10 was inadvertently published with one author name “Steven D. Billings” instead of two author names Youran Zou and Steven D. Billings. The chapter has been now updated.