<unk>  <unk>  is one of the most aggressive forms of breast cancer. It can occur at any age (and, extremely rarely, in men). It is referred to as<unk> " due to its frequent presentation with symptoms resembling a skin inflammation, such as erysipelas.<unk>  presents with variable signs and symptoms, frequently without detectable lumps or tumors; it therefore is often not detected by mammography or ultrasound. Typical presentation is rapid breast swelling, sometimes associated with skin changes (peau d'orange), and nipple retraction. Other signs include redness, persistent itching, and unusually warm skin.<unk>  often initially resembles mastitis. Approximately 50% to 75% of cases have the typical presentation; an atypical presentation makes diagnosis more difficult. In some cases, a sign such as acute central venous thrombosis may be the sole presenting indication of the disease.<unk>  comprises a small proportion of breast cancer cases (1% to 6% in the USA). African-Americans are usually diagnosed with<unk>  at younger ages than are Caucasian women, they are also at higher risk for the disease. Recent advances in therapy have improved the prognosis considerably; at least one-third of women will survive with<unk>  for ten years or longer.
Inflammatory breast cancer
Benign proliferative breast disease
Pre-cancer of the breast
Medullary breast carcinoma
Paget's disease of the breast
Breast eczema
Mucinous carcinoma of the breast
Hereditary lobular breast cancer