Journal List > J Korean Soc Radiol > v.62(1) > 1086790

Kim, Kim, Jeong, Kim, Kim, Kim, Jun, Kim, and Han: Breast Metastasis from Renal Cell Carcinoma: A Case Report

Abstract

Metastatic breast cancer from renal cell carcinoma is extremely rare and has non-specific findings that include a well circumscribed lesion without calcification on mammography and a well circumscribed hypoechoic lesion without posterior acoustic shadowing on sonography. We report a case of metastatic breast cancer from renal cell carcinoma and describe the radiologic findings in a 63-year-old woman who has no history of primary neoplasm.

Figures and Tables

Fig. 1

A 63-year-old woman with metastatic breast cancer from renal cell carcinoma.

A. Mediolateral oblique mammography shows a partially circumscribed, partially obscured nodular density in posterior aspect of right breast upper portion (arrow).
B. Sonography shows a round shape, well-defined, hypoechoic nodule with slightly thick echogenic halo in subcutaneous layer of right outer breast (arrow).
C. Color Doppler examination shows prominent internal vascularity in nodule.
D. The tumor cells are nested by the attenuated endothelial cells, showing sinusoidal pattern (H & E, ×100).
E. Abdominal sonography shows 7 cm low echoic mass in the left kidney.
F. CT of arterial phase shows heterogeneous enhancing mass in left kidney.
G. The tumor is relatively demarcated from the normal renal tubules. The tumor reveals sinusoidal vessel pattern. The tumor cells are round to oval with clear cytoplasm and round nuclei, and relatively prominent nucleoli (Fuhrman's Nuclear grade-3 out of 4) (×100).
jksr-62-77-g001

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