Gynecomastia may show different mammographic patterns depending on a number of factors.
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Type of Williams
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Pattern of Forman
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Features
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Duration
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Type I (florid)
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triangular, nondendritic
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retro-areolar soft tissue density without radiating extensions
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<= 4 months
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Type II (fibrous, quiescent)
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dendritic
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retro-areolar soft tissue shadow with radiating extensions
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> 1 year
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Laterality
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Common Causes
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unilateral
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non-hormonal drugs; idiopathic gynecomastia
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bilateral
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hormone-induced; marijuana; cirrhosis; chronic renal dialysis; pubertal gynecomastia
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Mammographic and clinical features suggesting breast carcinoma:
(1) mass located eccentrically relative to the nipple
(2) mass with irregular or spiculated outline
(3) numerous micro calcifications with irregular or angular shapes
(4) skin thickening
(5) nipple retraction
