 [ Symptoms ] can a mammogram detect whether a lump found in the breast of a male is fat cells or a tumor  a male friend of mine has been advised to have a mammogram even though a biopsy already ruled out cancer in a lump he found in his breast the doctor indicates he is not certain if it is fat cells or a tumor can a mammogram detect this and why would they not already know this information from having performed a biopsy [ Disease ] allergic disease in general tends to run in families if you are concerned about possible food allergy complete a food journal writing down all your symptoms and relationship to timing of specific foods allergy testing can be performed to evaluate for food allergy