Basal Cell Carcinoma

Introduction to Basal Cell Carcinoma (BCC)

Basal Cell Carcinoma (BCC) is recognized as the most prevalent type of skin cancer. The good news is that nearly all BCC cases are treatable when identified early.

Identifying BCC

BCC can manifest in various forms, often appearing as:

  • Dome-shaped growths with visible blood vessels
  • Shiny, pink patches on the skin
  • Sores that heal and return, sometimes accompanied by bleeding
  • Brown or black growths
  • White or yellow, waxy growths resembling scars

Most commonly, BCC develops in areas frequently exposed to the sun, such as the scalp, neck, and hands. However, it can also appear on other parts of the body. Exposure to UV rays, whether from sunlight or indoor tanning devices, significantly increases the risk of developing BCC.

BCC Treatment and Management

  • Early Detection: Early identification is crucial for effective treatment. If detected early, BCC is highly curable.
  • Treatment Options: Treatment typically involves one or more of the following procedures:
  • Excision: This surgical procedure involves removing the BCC along with some surrounding normal skin.
  • Mohs Surgery: A specialized procedure where the surgeon removes the cancerous tissue layer by layer, examining each one under a microscope until no cancer cells remain.
  • Electrodesiccation and Curettage: This technique involves scraping off the BCC and using heat to destroy any remaining cancer cells.
  • Radiation Therapy: Used when surgery is not an option, this involves targeted radiation to destroy the cancer cells.
  • Cryosurgery: Freezing the BCC with liquid nitrogen to destroy the cancerous tissue.
  • Photodynamic Therapy (PDT): A two-step process where a photosensitizing agent is applied to the skin and then activated with light to kill the cancer cells.
  • Topical Treatments: In cases where BCC is detected early and superficial, creams or gels may be prescribed to treat the cancer topically if surgery is not possible.

Preventing Recurrence and Protecting Your Skin

People who have had BCC are at a higher risk for developing new skin cancers, including melanoma. To reduce the risk of recurrence:

  • Regular Skin Exams: Perform regular self-examinations and visit your dermatologist for professional check-ups.
  • Sun Protection:
    • Seek shade, especially between 10 a.m. and 2 p.m.
    • Wear protective clothing, including a wide-brimmed hat and sunglasses.
    • Apply broad-spectrum sunscreen with an SPF of 30 or higher to all exposed skin. Reapply every two hours, or more frequently if swimming or sweating.
  • Avoid Tanning Beds: The use of tanning beds significantly increases the risk of BCC and other skin cancers.

Frequently Asked Questions About Basal Cell Carcinoma

What is basal cell carcinoma?

Basal cell carcinoma (BCC) is the most common type of skin cancer, arising from basal cells in the deepest layer of the epidermis. It most commonly develops in areas of chronic sun exposure — the face, scalp, neck, and hands. BCC rarely spreads to other organs, but it can cause significant local tissue damage if left untreated. When identified early, nearly all cases are curable.

What does basal cell carcinoma look like?

BCC can appear in several forms: a pearly or dome-shaped bump with visible blood vessels, a flat flesh-colored or brown scar-like lesion, a pink growth with raised edges, a sore that heals and repeatedly returns, or a shiny nodule. Any new or changing skin lesion — especially one that bleeds, crusts, or won’t heal — should be evaluated by a dermatologist.

How is basal cell carcinoma treated?

The most effective treatment for BCC on the face and other cosmetically sensitive areas is Mohs micrographic surgery, which achieves cure rates of up to 99% while preserving maximum healthy tissue. Other options include standard excision, electrodessication and curettage, and topical treatments for superficial BCC. Dr. Yoo will recommend the most appropriate treatment based on tumor location, size, subtype, and your individual history.

Can basal cell carcinoma come back after treatment?

BCC can recur, particularly if initial treatment did not achieve clear margins, the tumor was large or aggressive, or it was located in a high-risk area such as the nose or ears. Recurrent BCCs are harder to treat and carry a higher risk of deeper invasion. Regular skin checks after treatment are essential to catch any recurrence early.

How can I prevent basal cell carcinoma?

Sun protection is the most important preventive measure — daily broad-spectrum SPF 30+ sunscreen, protective clothing, sun avoidance during peak hours, and no tanning beds. Annual full-body skin exams with a dermatologist allow early detection of suspicious lesions before they become more difficult to treat.

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Dr. Jane Yoo Board-Certified Dermatologist and Mohs Surgeon
Jane Yoo, MD, MPP, is a Korean American board-certified dermatologist and fellowship-trained Mohs surgeon based in Midtown Manhattan. She is a Clinical Assistant Professor at the Icahn School of Medicine at Mount Sinai and the founder of Jane Yoo MD, PLLC and the Clinical Research Center of New York. Dr. Yoo holds an undergraduate degree from MIT and a Masters of Public Policy from Harvard's Kennedy School of Government. She completed her Mohs micrographic surgery fellowship at Yale. Her clinical and research focus spans aesthetic clinical trials including injectables and laser technology, skincare formulation and sunscreen science, K-Beauty and skin of color, ultrasound guided filler dissolution, artificial intelligence and beauty tech. Dr. Yoo's research is indexed under ORCID 0000-0002-7112-8963.