Some symptoms of infiltrating ductal carcinoma include thickening of the breast skin, lumps in the underarm region, swelling in one breast and nipple discharge. Infiltrating ductal carcinoma is the most common type of breast cancer, notes the American Cancer Society.
Invasive ductal carcinoma often begins in a milk duct, expands to break the wall of the duct and develops in the fatty tissue of the breast. In some cases, symptoms of this type of cancer may not appear, states Johns Hopkins Medicine.
A possible symptom of this type of cancer is formation of a lump in the breast. Individuals with this condition may experience new pain in one of the breasts. In some cases, the nipple may turn inward and develop painful sensations.
A rash may develop on the breast. Redness is another symptom that may occur. Other symptoms closely associated with invasive ductal carcinoma include changes in the appearance of the nipple, dimpling around the nipple and formation of a lump in the breast.
Doctors diagnose this condition by taking the patient's medical history, a physical examination and asking about the symptoms. Lab tests to help in diagnosis include biopsy, pathology, staging workup, MRI and ultrasound. Chemotherapy, hormonal therapy and radiation therapy are among the treatment options available for invasive ductal carcinoma.