All of the following are visible signs of breast cancer EXCEPT

Breast cancer often presents with characteristic visible and structural changes in breast tissue due to malignant cell invasion, lymphatic obstruction, and fibrosis. Common physical findings include skin retraction, nipple changes, and alterations in skin texture caused by underlying tumor growth. Some signs are strongly associated with malignancy due to disruption of normal breast architecture and lymphatic drainage. Recognizing these findings is important for early detection and prompt diagnostic evaluation. Rationale: A. Skin dimpling occurs when a tumor invades and pulls on Cooper’s ligaments, causing localized tethering of the skin. This results in an uneven or puckered appearance, especially noticeable when the patient raises their arms. It is a classic physical sign suggestive of underlying malignancy and disruption of breast tissue architecture. B. Nipple retraction develops when a tumor causes fibrosis and shortening of ducts beneath the nipple, pulling it inward. This structural distortion is concerning for malignancy, especially if it is new or unilateral. It reflects underlying invasive disease affecting ductal structures. C. Peau d’orange appearance is caused by lymphatic obstruction leading to edema and thickened skin resembling an orange peel. This occurs when tumor cells block dermal lymphatic channels, often seen in advanced or inflammatory breast cancer. It is a significant clinical indicator of malignant breast involvement. D. Erythema of the breast is not a specific visible sign of breast cancer because it can be associated with a wide range of benign conditions such as mastitis, infection, or skin irritation. While it may occur in inflammatory breast cancer, erythema alone without other structural changes is non-specific and not a reliable diagnostic sign.