N63.21

Clinical Causes: Benign cysts or fluid-filled sacs Fibroadenomas (benign tumors sheathed in glandular tissue) Infections or abscesses Hormonal changes causing tissue swelling Fat necrosis (due to trauma or injury) Breast cancer or malignant tumors

Key Symptoms: A palpable lump or mass in the upper outer part of the breast Breast tenderness or discomfort in the area Changes in the size, shape, or feel of the lump over time Nipple changes or discharge (less common) Skin changes over the lump, such as redness or dimpling In some cases, no symptoms are present and the lump is found during routine examination or imaging

Diagnosis Path: Mammogram: An X-ray of the breast that can differentiate between solid tumors and cysts Ultrasound: Uses sound waves to provide detailed images of the internal structures, helpful for distinguishing cystic from solid masses Biopsy: Removing a small tissue sample for laboratory analysis to determine if the lump is benign or malignant Magnetic Resonance Imaging (MRI): Occasionally used for a more detailed view, especially in complex cases

Treatment Protocols: Benign lumps such as cysts or fibroadenomas may be monitored over time or removed surgically if they cause discomfort or concern Infections like abscesses are typically treated with antibiotics and sometimes drainage Malignant lumps require a comprehensive approach including surgery, radiation therapy, chemotherapy, hormone therapy, or targeted therapies as recommended by a specialist Regular follow-up is essential for all patients to monitor for changes in the breast tissue