• A carcinoma involving the basal cells.
  NCI Thesaurus
  U.S. National Cancer Institute, 2021
• The most common skin cancer. Basal cell carcinoma doesn't spread to internal organs.
  Harvard Dictionary of Health Terms
  Harvard Medical Publishing, 2011
• Basal cell carcinoma is a superficial, slowly growing papule or nodule that derives from certain epidermal cells. Basal cell carcinomas arise from keratinocytes near the basal layer, which are sometimes called basaloid keratinocytes. Metastasis is rare, but local growth can be highly destructive. Diagnosis is by biopsy. Treatment depends...
  Merck Manuals
  Merck & Co., Inc., 2020
• Basal cell carcinoma (BCC) is a nonmelanocytic skin cancer (ie, an epithelial tumor) that arises from basal cells (ie, small, round cells found in the lower layer of the epidermis). The prognosis for patients with BCC is excellent, but if the disease is allowed to progress, it can cause significant morbidity.
  Medscape
  WebMD, 2019
• Basal cell carcinoma is a type of skin cancer. Basal cell carcinoma begins in the basal cells - a type of cell within the skin that produces new skin cells as old ones die off.
  Mayo Clinic
  Mayo Foundation for Medical Education and Research