I am really having a hard time with my thoughts of cancer. I have a lump on my head scalp. It's been there for at least 10 years. At present the size is of a chana dal. Or pea nut. Never observed it before. But I have been observing it since a year and it has not grown much not grown at all during last 12 months. One doc said it's sebaceous cyst. One said it's lesion one said it's soft lipoma. I don't wanna remove it because it's inherent and it would be considered bad if I remove it. Need an expert to advice. I never had any kind of discharge from it. My age is now 30.