Incremental Role of Mammography in the Evaluation of Gynecomastia in Men Who Have Undergone Chest CT.
OBJECTIVE
The purpose of this study was to determine whether additional breast imaging is clinically valuable in the evaluation of patients with gynecomastia incidentally observed on CT of the chest.


METHODS
In a retrospective analysis, 62 men were identified who had a mammographic diagnosis of gynecomastia and had also undergone CT within 8 months (median, 2 months). We compared the imaging findings of both modalities and correlated them with the clinical outcome.


RESULTS
Gynecomastia was statistically significantly larger on mammograms than on CT images; however, there was a high level of concordance in morphologic features and distribution of gynecomastia between mammography and CT. In only one case was gynecomastia evident on mammographic but not CT images, owing to cachexia. Two of the 62 men had ductal carcinoma, which was obscured by gynecomastia. Both of these patients had symptoms suggesting malignancy.


CONCLUSIONS
The appearance of gynecomastia on CT scans and mammograms was highly correlated. Mammography performed within 8 months of CT is unlikely to reveal cancer unless there is a suspicious clinical finding or a breast mass eccentric to the nipple. Men with clinical symptoms of gynecomastia do not need additional imaging with mammography to confirm the diagnosis if they have undergone recent cross-sectional imaging.
1 Department of Radiology, Section of Breast Imaging, Icahn School of Medicine at Mount Sinai, 1 Gustave Levy Pl, New York, NY 10029.
Emily B
EB
Sonnenblick
2 Department of Radiology, Section of Chest Imaging, Icahn School of Medicine at Mount Sinai, New York, NY.
Mary
M
Salvatore
1 Department of Radiology, Section of Breast Imaging, Icahn School of Medicine at Mount Sinai, 1 Gustave Levy Pl, New York, NY 10029.
Janet
J
Szabo
1 Department of Radiology, Section of Breast Imaging, Icahn School of Medicine at Mount Sinai, 1 Gustave Levy Pl, New York, NY 10029.
Karen A
KA
Lee
1 Department of Radiology, Section of Breast Imaging, Icahn School of Medicine at Mount Sinai, 1 Gustave Levy Pl, New York, NY 10029.
Laurie R
LR
Margolies
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D006177:Gynecomastia / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008327:Mammography; D008875:Middle Aged; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed
chest CT; gynecomastia; male breast; mammography