Ultrasound of Left Breast Mass (Radial View)This focused ultrasound image (radial view) of the palpable left breast mass, taken approximately 10-11 cm from the nipple at the eight o'clock position, reveals a prominent fat lobule measuring 6 cm x 2 cm with an area of hypoechoic change along the edge of the lobule that is avascular and has the sonographic appearance of probable fat necrosis.