Images obtained in a 69-year-old female patient with a new biopsy-proven malignant lesion in the left breast. (IMAGE)

Radiological Society of North America

Images obtained in a 69-year-old female patient with a new biopsy-proven malignant lesion in the left breast.

Caption

Images obtained in a 69-year-old female patient with a new biopsy-proven malignant lesion in the left breast. (A, B) The malignant lesion corresponds with a 2.5-cm irregular and spiculated mass (arrow) and an additional oval and circumscribed mass (double arrows) on left mediolateral oblique and craniocaudal spot compression mammographic views. US-guided core-needle biopsy revealed grade 3 invasive ductal carcinoma (arrow) and fibroadenoma (double arrow). Left positron emission mammographic (PEM) (C) craniocaudal and (D) mediolateral oblique color images obtained 1 hour after intravenous injection of 74 MBq of fluorine 18–labeled fluorodeoxyglucose (18F-FDG) show a mass (known cancer) with intense uptake and no uptake in the biopsy-proven fibroadenoma. Right PEM (E) craniocaudal and (F) mediolateral oblique color images obtained 1 hour after intravenous injection of 74 MBq of 18F-FDG do not show any abnormal uptake. Left PEM craniocaudal images obtained (G) 1 hour and (H) 4 hours after intravenous injection of 74 MBq of 18F-FDG show no substantial visual difference in uptake of known cancer. (I) Axial contrast-enhanced fat-saturated subtracted T1-weighted MR image with maximum intensity projection reconstruction obtained 90 seconds after intravenous injection of 0.1 mmol of gadolinium-based contrast material per kilogram of body weight also shows the left-sided enhancing mass (arrow) corresponding to known malignancy and the biopsy-proven fibroadenoma (double arrows), as well as multiple nonspecific foci of enhancement in the contralateral breast, with one being the most conspicuous (arrow). The patient underwent bilateral lumpectomy. The final pathologic results in the left breast confirmed grade 3 invasive ductal carcinoma and yielded atypical ductal hyperplasia in the right breast.

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Radiological Society of North America

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