X-ray photography of double breast molybdenum target shows that the upper quadrant of left breast is a circle with a size of about *.

Hello, my friend, according to the description of the mammogram you provided, a circular shadow is mainly displayed in the upper quadrant of the left breast. Uniform density indicates that the lesions are homogeneous in texture, without necrosis or calcification inside, but the edges are clear, suggesting that the lesions are mostly benign and grow slowly.

So to sum up, in view of your situation, we should first consider the possibility of benign space occupying lesions in the left breast, especially breast fibroma. Can be combined with breast color ultrasound examination for further diagnosis. If necessary, guided puncture biopsy can be considered to achieve the purpose of qualitative diagnosis. Do you need any help?