A Patient Has Stage I Tumor in Situ (TIS)

A patient has stage I tumor in situ (TIS) . Which of the following explanations of TIS by the nurse is best?

A) "The tumor is situated between two tissues, so there is risk for metastasis to both tissues."
B) "The tumor has not invaded any tissues beyond the original site."
C) "The tumor has spread and is generalized throughout the body."
D) "The tumor has spread to the lymph nodes in the immediate area."