Breast within a breast sign - hamartoma

Case contributed by Mohammadtaghi Niknejad

Presentation

Mass feeling in right breast.

Patient Data

Age: 35 years
Gender: Female
mammography

A large well-circumscribed oval shaped inhomogeneous mass is noted at UOQ of right breast, surrounded by a thin capsule, comprising of both fat and soft-tissue densities (both radiolucent and radiodense components - "breast within a breast"  or a "slice of sausage" appearance)

mammography

A large well-circumscribed oval shaped inhomogeneous mass is noted at UOQ of right breast, surrounded by a thin capsule, comprising of both fat and soft-tissue densities (both radiolucent and radiodense components - "breast within a breast"  or a "slice of sausage" appearance), better seen on Tomosynthesis images.

Case Discussion

Typical appearance of breast hamartoma (pathology proven) which is a benign breast lesion and typically occur in women older than 35 years of age. They are typified by a "breast within a breast" appearance on mammogram.

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