Presentation
Family history of breast cancer in mother. Palpable, non-tender, mobile mass on examination. No inverted nipple, nipple discharge, skin changes, or tenderness.
Patient Data
Bilateral craniocaudal and mediolateral oblique views from a digital screening mammogram demonstrate scattered areas of fibroglandular density in both breasts. In the central upper left breast, there is a well-circumscribed, oval, lobulated mass.
Left breast ultrasound at the 12:00 axis, 3 cm from the nipple, demonstrates an oval lobulated, heterogeneous mass measuring 2.0 x 2.3 x 1.7 cm.
Case Discussion
Papillary carcinoma of the breast is a histological subtype of breast cancer characterized by a micropapillary pattern and is associated with a favorable prognosis 1. Solid papillary carcinomas primarily present in postmenopausal patients as a palpable mass with or without nipple discharge 2.
Mammographically, papillary carcinoma of the breast presents as a well-circumscribed lesion in the shape of an oval or can be lobulated 3. Ultrasonography typically demonstrates either an anechoic or hypoechoic appearance, and invasive forms normally have an irregular shape.
In this particular case, surgical pathology report confirmed ER-positve, PR-positive, HER2-negative, invasive, solid papillary carcinoma.
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