It depends on what kind of practice you end up joining. My hospital-based group only gets outpatient GI biopsies because we have a GI center at the hospital. There's almost no GU, gyn or derm biopsies, unless it's done in the OR. The large specimens of note are mainly colons, breasts, prostates & kidneys. One of our old hospitals had L&D, so we'd also get placentas.
I'm guessing you don't plan on working for a single specialty (GI, derm, GU, heme, etc) lab. You should know what you're getting when you join one of them.
----- Antony