What percent of complicated breast cysts are cancerous? Conclusions: Breast cancer presenting as a complicated cyst by ultrasound was rare (0.4%, 95% confidence interval 0-1.94%). These results provide support for classification of complicated cysts as probably benign.
Can breast cancer be misdiagnosed as a cyst? Very occasionally, breast cancer can be misdiagnosed as a complex cyst, so imaging can help to pinpoint any cancerous activity. Most cysts do not need treatment unless they are large and painful or cause discomfort in which case aspiration with a needle to drain the fluid can relieve symptoms.
Can you tell if a breast cyst is cancerous from an ultrasound? If an abnormality is seen on mammography or felt by physical exam, ultrasound is the best way to find out if the abnormality is solid (such as a benign fibroadenoma or cancer) or fluid-filled (such as a benign cyst). It cannot determine whether a solid lump is cancerous, nor can it detect calcifications.
Can breast cysts lead to breast cancer? Having breast cysts doesn’t increase your risk of breast cancer. But having cysts may make it harder to find new breast lumps or other changes that might need evaluation by your doctor.