The Young Doctors (1961)

Two pathologists -- a veteran department head (Fredric March) whose perspective has been shaped by years of red tape and day-to-day frustrations, and his new assistant (Ben Gazarra), a young, somewhat aggressive man who is more up-to-date but who lacks his colleague's personal touch -- clash in a small hospital's lab. The gulf between their approaches is dramatically illustrated by two critical cases that both are intimately involved in.