Understanding the Different Types of Skin Cancer and Their Symptoms
Skin cancer develops when abnormal skin cells grow uncontrollably, often following ultraviolet exposure from sunlight or tanning devices. The three primary types include basal cell carcinoma, squamous cell carcinoma, and melanoma, each presenting different characteristics and growth patterns. While basal and squamous cell carcinomas often appear as bumps or scaly lesions, melanoma may involve changing moles or irregularly colored spots. Here is more information about the different types of skin cancer and their symptoms:
Understanding Common Skin Cancer Types
Skin cancer includes several forms that differ in appearance, growth patterns, and potential health risks. Basal cell carcinoma commonly develops on sun-exposed areas, including the face, neck, and ears. Squamous cell carcinoma also frequently affects sun-exposed skin, while melanoma develops in pigment-producing cells and has greater metastatic potential. Common characteristics include:
- Recognizing basal cell carcinoma: Identifying pearly bumps, scar-like patches, or sores that bleed and do not heal.
- Recognizing squamous cell carcinoma: Noticing firm nodules, scaly patches, or crusted lesions that may develop on sun-exposed areas.
- Recognizing melanoma: Observing new or changing moles with irregular borders, uneven coloring, or changes in size and shape.
Although basal cell carcinoma typically grows slowly, untreated lesions may damage surrounding skin and underlying tissues. Squamous cell carcinoma sometimes spreads beyond its original location, and melanoma carries a greater risk of spreading to other organs. Because suspicious skin changes require professional assessment, dermatologists use skin examinations and biopsies to evaluate possible skin cancers.
Diagnosing and Treating Cancer
Diagnosing skin cancer typically begins with a visual examination of suspicious moles, lesions, or changes in skin appearance. Dermatologists assess the affected area and review relevant medical history before determining whether additional testing is necessary. When a lesion appears suspicious, providers may perform a skin biopsy to collect tissue for laboratory analysis. A pathologist examines the sample to identify abnormal cells and determine the specific cancer type.
Treatment options depend on the cancer’s type, size, location, and extent of growth. Surgical removal is frequently recommended for certain skin cancers, while other conditions may respond to localized treatments. Common treatment approaches include excisional surgery, Mohs micrographic surgery, curettage and electrodesiccation, cryotherapy, and topical medications. Because each procedure addresses different clinical circumstances, dermatologists select treatment methods based on examination findings and biopsy results.
Melanoma and other advanced cancers may require additional evaluation to determine whether cancer cells have spread beyond the original lesion. Depending on the diagnosis, treatment may involve further surgery, immunotherapy, targeted therapy, or other systemic approaches. Follow-up appointments allow providers to monitor treated areas, evaluate healing, and examine the skin for new or recurring abnormalities.
Understanding Cancer Risk Factors
Skin cancer symptoms vary by type and may include persistent sores, scaly patches, unusual growths, or changes in existing moles. Basal cell carcinoma sometimes appears as a recurring sore, while squamous cell carcinoma often develops as a rough lesion. Dermatologists commonly use the ABCDE framework to identify suspicious changes associated with melanoma. Warning signs include:
- Asymmetry: Noticing one half of a mole differs in shape or appearance from the other.
- Border: Observing irregular, blurred, or uneven edges around a mole.
- Color: Identifying multiple colors or uneven pigmentation within the same spot.
- Diameter: Recognizing spots larger than approximately six millimeters, although melanomas may be smaller.
- Evolving: Monitoring changes in a mole’s size, shape, color, or appearance over time.
New or changing lesions that itch, bleed, or cause pain should also receive professional evaluation.
Schedule a Skin Exam Today
Skin cancer includes several types with different appearances, growth patterns, and associated risk factors. Regular skin self-examinations help individuals identify new growths, changing moles, and persistent sores that require further evaluation. Dermatologists use professional skin examinations and diagnostic testing to assess suspicious lesions and determine appropriate treatment options. Contact a dermatology provider today to schedule a skin examination and discuss any concerning changes in your skin.
