Gynecomastia (MRI)

Case contributed by Roberto Pais


Patient presented a compressible, soft, tender, subareolar mass in the left breast.

Patient Data

Age: 50 years
Gender: Male



Subareolar bilateral volumetric asymmetry with left predominance.

T2 WI shows bilateral hypointense formations with left predominance.

T2 WI with fat saturation shows the same formations with iso to hyperintense signal.

T1 WI with fat saturation demonstrates the referred formations with iso to hyperintense signal.

Case Discussion

This case demonstrates the MRI appearance of a nodular bilateral asymmetric gynecomastia. The pathologic features of the nodular pattern of gynecomastia include dilated fluid-filled mammary ducts, normal or hyperplastic ductal epithelium, and interstitial edema.

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