My husband is waiting for his biopsy results next week. we believe it is tongue cancer. he also has had black gums, on his bottom teeth, which hes never had before, cracked lips on the side of his lips and now has noticed an indent on the top of his head. If he does have cancer, could these symptoms be also related? Any advice would be appriciated. Oh, one other question. All the web sites I have read state "earlydetection" for better survival rate. How long do you have the white mark on side of tongue for it to be early? How long are these symptoms on the body to make them advanced?