Can men get "breast" (pectoral) cancer and if so how likely is it? by age? signs and symptoms?

Yes: Men get breast cancers that look just like women's under the microscope; they happen under the nipple. It's not that rare; it presents as a mass or less often an ulcer. The word "pectoral cancer" was made up by somebody and it's not in use and not appropriate, as it's not cancer of the "pec muscles".

Yes: Male breast cancer is reported but is rare. No age is predictive. Enlarged male breast, discharge from nipples, tenderness, and feeling something amy all be subtle signs. A ultrasound of the breast the best first step. I would suggest you contact a large hospital, they tend to have breast clinic, and let them know about your issues, or would contact your MD and seek their input.