Recognizing Basal Cell Carcinoma
How Basal Cell Carcinoma Appears — and Why the Subtype Matters for Treatment
Basal cell carcinoma does not look the same in every patient. There are several recognized subtypes, each with distinct clinical and dermatoscopic features, and the subtype determines which treatment will achieve the best balance of complete cancer removal and cosmetic outcome. Dr. Sierro identifies the BCC subtype at dermatoscopy and biopsy before recommending any treatment so that the treatment plan is matched to the specific biology of the lesion rather than applied as a one-size-fits-all approach.
Nodular BCC
The most common subtype. Appears as a round, pearly or translucent bump with tiny visible blood vessels (telangiectasias) branching across its surface. May have a central ulceration that bleeds easily. Most commonly found on the nose, cheeks, and forehead. The case documented on this page is a nodular BCC above the upper eyelid.
Superficial BCC
Appears as a flat, scaly pink or red patch on the trunk or extremities. Often mistaken for eczema or psoriasis. Multiple lesions can occur. Best treated with topical imiquimod, 5-fluorouracil cream, photodynamic therapy, or electrodesiccation and curettage. Lower risk of recurrence than deeper subtypes.
Morpheaform (Sclerosing) BCC
The most aggressive subtype. Appears as a flat, scar-like or waxy white plaque with indistinct borders that extend well beyond what is visible on the skin surface. The borders of morpheaform BCC are notoriously difficult to define clinically, making it the subtype most likely to be incompletely excised with standard margins. Requires the widest excision margins or Mohs surgery.
Pigmented BCC
Resembles a mole or melanoma clinically with brown, black, or blue-grey pigmentation. More common in patients with darker skin tones. Dermatoscopy is particularly important for distinguishing pigmented BCC from melanoma before biopsy. Treated the same way as nodular BCC once diagnosed.
Basosquamous BCC
A mixed tumor combining features of both basal cell and squamous cell carcinoma. More aggressive than pure BCC and more likely to spread locally. Requires wide excision margins and close post-treatment surveillance. Dr. Sierro identifies this subtype at biopsy and adjusts the treatment plan accordingly.
Infiltrative BCC
Finger-like extensions of tumor spread through the dermis beyond the visible border of the lesion. Clinically appears as an ill-defined pink or flesh-colored area that may be mistaken for normal skin. Like morpheaform BCC, infiltrative subtype requires wide margins or Mohs technique to achieve clearance.
Do not ignore a spot that won't heal. The most common early presentation of basal cell carcinoma in Santa Monica patients is a small pink bump or a sore on the face that bleeds when bumped, scabs over, and then returns in the same spot without fully healing. If you have a lesion on your face, scalp, ears, neck, or chest that fits this description and has been present for more than 4 to 6 weeks, call Dr. Sierro at Kare Skin Health Center for an evaluation. Call (310) 998-5533.
Treatment Options for Basal Cell Carcinoma at Kare Skin Health Center
Surgical Excision
The standard treatment for most basal cell carcinomas. The tumor and a surrounding margin of normal skin are removed and sent for pathology to confirm clear margins. For cosmetically sensitive areas like the face, Dr. Sierro coordinates directly with the Kare plastic surgery team for reconstruction when the excision defect requires it. Surgical excision achieves cure rates above 95 percent for primary BCC.
Electrodesiccation and Curettage
A quick in-office procedure where the BCC is scraped away with a curette and the base is treated with electric current to destroy remaining cancer cells. Appropriate for small, superficial, and low-risk BCCs on the trunk and extremities. Not recommended for the face or for aggressive BCC subtypes.
Topical Therapy
Imiquimod cream (Aldara) and 5-fluorouracil cream are approved topical treatments for superficial BCC. Applied at home over several weeks, they stimulate the immune system or disrupt cancer cell division to clear the lesion. Best for superficial BCC on the trunk with well-defined borders. Not used for nodular, morpheaform, or facial BCC.
Plastic Surgery Reconstruction
When BCC excision on the face, eyelids, nose, or lips creates a defect that cannot be closed primarily, plastic surgery reconstruction restores both function and appearance. The Kare Skin Health Center works directly with the Kare plastic surgery team for reconstruction — the same practice, the same standard of care, and no referral delay. This is the unique advantage of Kare's integrated dermatology and plastic surgery model in Santa Monica.
"The patients who benefit most from a combined dermatology and plastic surgery practice are the ones who develop basal cell carcinoma in a cosmetically sensitive location. The conversation about reconstruction begins at the biopsy visit, not after the excision is done. That coordination is what produces the best outcomes for our patients."
— Dr. Tiffany Sierro, MD · Board-Certified Dermatologist · Kare Skin Health Center, Santa Monica
If you have had one basal cell carcinoma, your risk of developing a second one within five years is approximately 40 percent. Annual skin cancer screening with Dr. Sierro at Kare Skin Health Center in Santa Monica is the most effective way to catch new lesions before they become more complex to treat. Patients with a history of BCC, significant sun exposure, fair skin, or immunosuppression are all at elevated risk and benefit from annual full body skin checks.
Authority Resources at Kare Skin Health Center
Frequently Asked Questions
Where can I get basal cell skin cancer treated in Santa Monica?
Kare Skin Health Center at 804 7th Street in Santa Monica near Montana Avenue offers expert basal cell skin cancer diagnosis and treatment by board-certified dermatologist Dr. Tiffany Sierro. Dermatoscopic evaluation, skin biopsy, BCC subtype identification, surgical excision, and plastic surgery reconstruction for cosmetically sensitive sites. Annual skin cancer screening available. Call (310) 998-5533. We serve patients from Santa Monica, Beverly Hills, Brentwood, Malibu, Pacific Palisades, and all of Los Angeles.
What does basal cell carcinoma look like?
The most common presentations of basal cell carcinoma in Santa Monica patients include a pearly or shiny bump with tiny visible blood vessels on the surface, a pink or red growth that does not resolve with standard skincare, a flat scar-like waxy patch with indistinct borders, or a sore that bleeds when bumped and then scabs without healing. Around 85 percent of all basal cell carcinomas occur on the face and neck because these areas receive the most cumulative sun exposure. Any lesion that fails to heal after 4 to 6 weeks should be evaluated. Call Dr. Sierro at (310) 998-5533.
Does basal cell carcinoma need to be removed immediately?
Basal cell carcinoma is typically slow growing and does not usually require emergency surgery. However, treatment should not be delayed indefinitely. Untreated BCC grows deeper over time and can invade surrounding structures including nerves, cartilage, and bone. In cosmetically sensitive locations like the eyelids and nose, earlier treatment makes reconstruction simpler and preserves more normal tissue. Dr. Sierro schedules patients with newly diagnosed BCC promptly and provides a clear treatment plan at the biopsy result visit. Call (310) 998-5533.
Related Resources at Kare Skin Health Center