Can you have breast cancer without microcalcifications? mammogram shows nodules, but no microcalcifications. 3mm, 9mm, and 7mm. all asymmetry

Possible.: There are several mammographic characteristics that suggest benignity or malignancy, but we can't use any of them in isolation to make such an important decision diagnostically. All characteristics should be used in unison, and if doubt still exists then a biopsy or lumpectomy should be pursued.

See Disclaimer: A typical mammogram will often cite a disclaimer stating something like a negative mammogram cannot exclude a malignancy. That means you cannot draw broad blanket conclusions, one way or the other, about micro-calcifications. You should have your breasts evaluated further by a breast surgeon.

Yes.: Up to 80% of breast cancers do not produce mammographic calcifications. The level of suspicion, and therefore the decision to ignore, follow up, or biopsy, solid nodules is based on a variety of mammo/ultrasound features in addition to whether or not there are suspicious microcalcs.