Table 1. Breast cancer cutaneous metastases: mimicking conditions and skin manifestations.
CR: case report
| Condition | References |
| Benign cutaneous lesions and tumors | [1-6] |
| Collision tumor | [3,4] |
| Cyst | [2] |
| Dermatofibroma | [5] |
| Milia-en-plaque | [6] |
| Nodule | [1-3] |
| Papule | [1-3] |
| Plaque | [1,2] |
| Cutaneous malignancy | [4,7,8] |
| Basal cell carcinoma | [7] |
| Keratoacanthoma | [8] |
| Melanoma | [7] |
| Squamous cell carcinoma | [4] |
| Infections | [1-3,9,10] CR |
| Carcinoma erysipelatoides | [2,3] CR |
| Folliculitis | [9] |
| Zosteriform metastases | [1,3,10] CR |
| Miscellaneous | [1-3,11-13] CR |
| Clown nose | [11] |
| Erosions | [2] |
| Paget’s disease | [3] |
| Papillomatosis cutis lymphostatica | [12] |
| Targetoid | [13] CR |
| Ulcers | [1] |
| Reactive erythema | [3,14,15] CR |
| Annular erythema | [3] CR |
| Erythema annulare centrifugum | [3,14] |
| Urticaria | [15] |
| Skin conditions | [1-4,16,17] CR |
| Alopecia | [2,3,16] |
| Carcinoma en cuirasse | [2,3] CR |
| Dermatitis | [1,3,4] CR |
| Hidradenitis suppurativa | [17] |
| Unique locations | [1-4,13] CR |
| Eyelids | [3,4] |
| Inframammary folds | [1,3,4] |
| Lymphedematous arm | [2] |
| Radiation therapy port | [2] CR |
| Scalp | [1] |
| Scars | [1,2,13] |
| Subungual | [3] |
| Umbilicus | [3] |
| Vascular lesions | [2,3,18-20] |
| Angiosarcoma | [18] |
| Carcinoma hemorrhagiectoides | [19] |
| Carcinoma telangiectoides | [2,3] |
| Purpura | [3] |
| Pyogenic granuloma | [20] |