Task: Instance Description Understanding (ontology: Sciences/Computer_Science)

Which of the following definitions best describes the instance 'pT3b (kidney)'?

A. A pathologic primary tumor stage for kidney according to AJCC 7th edition indicating that the tumor invades beyond Gerota fascia (including contiguous extension into the ipsilateral adrenal gland).
B. A pathologic primary tumor stage for kidney according to AJCC 7th edition indicating that the tumor is more than 7 cm but not more than 10 cm.
C. A pathologic primary tumor stage for kidney according to AJCC 7th edition indicating that there is no evidence of primary tumor.
D. A pathologic primary tumor stage for kidney according to AJCC 7th edition indicating that the tumor grossly extends into vena cava below diaphragm.

Answer: A pathologic primary tumor stage for kidney according to AJCC 7th edition indicating that the tumor grossly extends into vena cava below diaphragm.