@longevitytips2: How breast cancer may progress from a painless lump to an ulcer and metastasis Breast cancer does not always progress in a fixed sequence. Some cancers grow slowly, while aggressive types may spread early. A tumour can metastasize without causing an ulcer, and an ulcerated breast tumour does not automatically mean distant metastasis. 1. Cancer begins inside a duct or lobule Abnormal cells multiply uncontrollably within a milk duct or milk-producing lobule. At first, they may remain contained within that structure; this is called carcinoma in situ. When the cells break through the surrounding tissue barrier, the cancer becomes invasive breast cancer. 2. A small, usually painless lump develops As the invasive cells multiply, they form a small tumour. It may feel hard, irregular or different from the surrounding breast tissue. The lump is often painless because an early tumour may not yet be pressing on nerves or causing significant inflammation. However, most breast lumps are not cancer, so imaging and a biopsy are required for diagnosis. 3. The tumour grows into nearby breast tissue Without treatment, the tumour may enlarge and invade surrounding fat, ducts and supporting tissue. It may pull on the breast’s supporting ligaments, producing: Skin dimpling or puckering Nipple pulling inward A change in breast size or shape Thickening or hardening of the breast Abnormal or bloody nipple discharge Cancer cells may also block small lymphatic vessels in the skin, causing swelling, redness and an orange-peel appearance known as peau d’orange. 4. Cancer may reach nearby lymph nodes Cancer cells can enter lymphatic vessels and travel to regional lymph nodes, especially those in the armpit. The nodes may enlarge, although affected nodes cannot always be felt. Regional lymph-node spread means that the cancer has moved beyond the original breast tumour, but it is not yet necessarily distant metastatic disease. 5. The tumour invades and breaks down the skin As a locally advanced tumour reaches the skin, it may interfere with the skin’s blood supply. The tissue can become inflamed, damaged and eventually die. The skin may then break open, producing an ulcerated or fungating breast wound. It may: Discharge fluid or pus Bleed easily Develop an unpleasant smell Become painful Become infected Breast skin ulceration is classified as T4b disease, indicating locally advanced skin involvement. It requires urgent medical assessment and wound care alongside cancer treatment. 6. Cancer cells spread to distant organs Some cancer cells may enter blood vessels or lymphatic vessels, survive the journey through the body and establish new tumours elsewhere. This is called metastasis or stage IV breast cancer. Breast cancer most commonly spreads to: Bones: persistent bone pain or fractures Lungs: breathlessness or persistent coughing Liver: abdominal swelling, pain or jaundice Brain: severe headaches, seizures, weakness or vision changes The tumour in the distant organ remains breast cancer—for example, breast cancer in the lungs is metastatic breast cancer, not primary lung cancer. Key message Painless does not mean harmless. Any new breast lump, skin change, nipple change, persistent swelling or breast wound should be examined promptly. Early diagnosis usually allows treatment before extensive local damage or distant spread occurs.

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Tuesday 04 August 2026 03:54:53 GMT