Yeah the largest extent of contact seems to be in sampling procedures where they are in the room with the patient while they or the proceduralist are taking samples (fine needle or core biopsies). The patient is generally awake and communicative, and has lots of questions and concerns. The pathologist is on site with a microscope and specimen kits, ensuring that there's enough sample for a diagnosis. The key to the role seems to be to have a really good poker face, because the pathologist is going to know if the patient has cancer well before anyone else, and often well before s/he leaves the room.