I read last night that even doctors sometimes do not distinguish those two things. So I am not even sure what my husband has at this point . His report says :
"1 core involved by prostatic adenocarcinoma, gleason grade 4+3 (grade group 3). Gleason pattern 4 comprises 80% of the core and consisted of poorly formed glands with developed cibriform gland. Gleason 4 includes intraductal component .Perineural invasion and extraprostatic extension are absent.

This was the only core of 14 total taken that has this. Only 3 more have some changes and they are 3+3 .