Nice to talk to you! I am 68 and have multiple myeloma. Several months ago I found a dent in my forehead, about an inch or so long, maybe 1/8th inch deep. Hard to measure, but I think it s growing. Also just found another much smaller dent just above it. Researching seems to present a possibility of an unusual plasmacytoma, or just a strange but fairly common occurrence among people. I did make an appointment with my oncologist, but .....here you are, so I ll ask!