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Mammography - Results

Alternative Names

Mammogram

Normal Values:

Breast tissue that shows no signs of a mass or calcification is considered normal.

What abnormal results mean:

A well-outlined, regular, clear spot is more likely to be a noncancerous condition such as a cyst.

A poorly outlined, cloudy area is more likely to suggest breast cancer. However, not all breast cancers are perfectly round, and some cancers may appear well-defined.

Sometimes, the doctor will use ultrasound to further examine your breast and determine the next best step. When findings from a mammogram or ultrasound look suspicious, a biopsy is performed to determine if it a cancerous or noncancerous condition.

Female Breast

Breast lumps

Causes of breast lumps

Mammary gland

Mammogram

Abnormal discharge from the nipple

Fibrocystic breast disease

Reviewed last on: 12/31/2008
David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Susan Storck, MD, FACOG, Chief, Eastside Department of Obstetrics and Gynecology, Group Health Cooperative of Puget Sound, Redmond, Washington; Clinical Teaching Faculty, Department of Obstetrics and Gynecology, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

References

Muss HB. Breast cancer and differential diagnosis of benign lesions. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 208.

Berg WA, Blume JD, Cormack JB, Mendelson EB, Lehrer D, Böhm-Vélez M, et al. Combined screening with ultrasound and mammography vs mammography alone in women at elevated risk of breast cancer. JAMA. 2008 May 14;299(18):2151-63.

Lehman CD, Gatsonis C, Kuhl CK, et al. MRI evaluation of the contralateral breast in women with recently diagnosed breast cancer. N Engl J Med. 2007 Mar 29;356(13):1295-303. Epub 2007 Mar 28.

Qaseem A, Snow V, Sherif K, et al. Screening mammography for women 40 to 49 years of age: A clinical practice guideline from the American College of Physicians. Ann Intern Med. 2007;146(7):511-515.

Saslow D, Boetes C, Burke W, et al. American Cancer Society guidelines for breast screening with MRI as an adjunct to mammography. CA Cancer J Clin. 2007 Mar-Apr;57(2):75-89.

Smith RA, Saslow D, Sawyer KA, et al. American Cancer Society guidelines for breast cancer screening: Update 2003. CA Cancer J Clin. 2003;53(3):141-169.

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