It contains all of the phone numbers Microsoft has worldwide for its activation centers: To activate your product over the telephone, use one of the following numbers: 1  Windows activation: (888) 571-2048. 2  Microsoft Office activation (United States only): (888) 652-2342.  TTY number: (800) 718-1599.
Sacrococcygeal teratoma. Sacrococcygeal teratoma (SCT) is a type of tumor known as a teratoma that develops at the base of the coccyx (tailbone) and is thought to be derived from the primitive streak. Sacrococcygeal teratomas are benign 75% of the time, malignant 12% of the time, and the remainder are considered immature teratomas that share benign and malignant features.
The coccyx is the very bottom portion of the spine. It represents a vestigial tail (hence the common term tailbone) and consists of three or more very small bones fused together. The coccyx is made up of between three and five separate or fused vertebrae.he coccyx articulates with the sacrum through a vestigial disc, and is also connected to the sacrum with ligaments (see Figure 1). There is very limited movement between the coccyx and the sacrum. In This Article: 1  Coccydynia (Tailbone Pain). 2  Anatomy of the Coccyx (Tailbone).