Clinicoradiologicial aspects of secretory carcinoma breast: A rare pediatric breast malignancy

Secretory carcinoma (juvenile carcinoma) is one of the very rare breast malignancy reported to be prevalent in pediatric age group. We report imaging and clinicopathological features of secretory carcinoma breast with distant and axillary metastasis, in an 11-year-old girl, who presented with a painful lump in right breast. Ultrasound revealed a well-defined, partially microlobulated hypoechoic mass with skin and pectoralis muscle involvement and a suspicious morphology right axillary lymph node. Color Doppler revealed increased vascularity in both the breast mass and suspicious axillary node. Magnetic resonance imaging helped in better evaluation of pectoralis muscle involvement. Computed tomography (CT) neck, chest, and abdomen revealed multiple fibronodular opacities in bilateral lung fields. 18 Flouro-Deoxy-Glucose Positron Emission Tomography (FDG PET-CT) showed a hypermetabolic retroareolar breast mass with multiple hypermetabolic bilateral lung nodules suggesting lung metastasis. The histopathology confirmed the diagnosis of secretory carcinoma. The patient was offered chemotherapy for 2 years and put on follow-up since then.