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Melanoma Diagnosis

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Diagnosing Melanoma

Diagnosing melanoma begins with recognizing changes in the skin and taking those changes seriously. Melanoma is one of the most aggressive forms of skin cancer, but it is also highly treatable when detected early. Because it often develops on the surface of the skin, melanoma may first be noticed by patients themselves, a loved one, or a healthcare provider during a routine exam. Paying attention to new or changing moles, spots, or lesions is a critical first step in identifying melanoma before it has the chance to spread.

Early detection plays a vital role in improving outcomes. When melanoma is found in its earliest stages, treatment is often less complex and more successful. However, melanoma can sometimes develop in areas that are harder to see, such as the scalp, back, or under the nails, making regular skin checks and professional evaluations especially important. At Rocky Mountain Cancer Centers, our team uses a combination of clinical expertise, diagnostic tools, and advanced testing to accurately diagnose melanoma and determine the most appropriate next steps for care.

Skin Examination

Diagnosis often begins with a thorough skin examination. During this evaluation, your physician will carefully assess the size, shape, color, and texture of any suspicious lesions. They may use a dermatoscope, a specialized magnifying tool, to examine the skin more closely and identify patterns that are not visible to the naked eye.

Your provider will also review your medical history, including any personal or family history of skin cancer, previous sun exposure, history of sunburns, and the presence of multiple or atypical moles. This information helps determine your overall risk and whether further testing is needed.

In some cases, your physician may perform a full-body skin exam to check for additional lesions that may not have been previously noticed. This comprehensive approach ensures that any concerning areas are identified early.

 

Skin Biopsy

A biopsy is the only way to confirm a melanoma diagnosis. If a suspicious lesion is identified, your physician will remove all or part of it and send the tissue to a pathologist for examination under a microscope. The pathologist will determine whether cancer cells are present and provide detailed information about the tumor.

Several biopsy techniques may be used depending on the size, location, and characteristics of the lesion:

  • Excisional biopsy: The entire lesion is removed along with a small margin of surrounding skin. This is often the preferred method when melanoma is suspected.
  • Incisional biopsy: Only a portion of the lesion is removed for analysis.
  • Punch biopsy: A circular tool is used to remove a deeper sample of skin.
  • Shave biopsy: The top layers of the skin are shaved off, typically used for superficial lesions.

The biopsy report provides important details such as tumor thickness (Breslow depth), ulceration, and mitotic rate, all of which help guide staging and treatment decisions.

Additional Testing for Melanoma Staging

If melanoma is confirmed, additional testing may be recommended to determine whether the cancer has spread beyond the original site. Not all patients will need further testing, especially if the melanoma is detected at an early stage.

Tests may include:

  • Sentinel lymph node biopsy: Identifies whether melanoma has spread to nearby lymph nodes.
  • Ultrasound: Evaluates lymph nodes or other soft tissues.
  • CT scan: Provides detailed images of internal organs.
  • MRI: Often used to evaluate the brain or spinal cord if spread is suspected.
  • Blood tests: May be used to assess overall health and organ function.
  • PET scan: Detects areas of increased metabolic activity that may indicate cancer is developing

Some patients may also undergo biomarker testing to identify specific genetic mutations, such as BRAF mutations, in the cancer. Identifying these mutations can help determine whether targeted therapies would be effective as part of the treatment plan.

When Should You See a Dermatologist?

It is important to have a doctor look at any suspected skin cancer, especially if you notice any changes in your skin. Early assessment can lead to earlier diagnosis and more effective treatment.

Schedule an evaluation with your primary care provider or dermatologist if you notice:

  • A new mole or pigmented lesion
  • Changes in an existing mole, including size, shape, or color
  • A spot that bleeds, itches, becomes tender, or does not heal
  • Any lesion that meets the ABCDE warning signs of melanoma (Asymmetry, Border irregularity, Color variation, Diameter, and Evolving)

Regular self-examinations and routine skin checks with a healthcare provider can help detect melanoma early. If you have a higher risk due to family history, fair skin, or significant sun exposure, your provider may recommend more frequent screenings.

Making an appointment sooner, rather than later, can make a significant difference in treatment outcomes. If you have concerns about a suspicious spot, schedule an appointment with your dermatologist or primary care provider to have it evaluated.

When Should You See an Oncologist for Melanoma?

If you were diagnosed with melanoma, your dermatologist may be able to manage your care, particularly when the melanoma is found at an early stage and can be completely removed with surgery. However, depending on the stage of the melanoma, seeing an oncologist may be an important next step.

You may be referred to an oncologist if:

  • The melanoma is deeper or has other features that increase the risk of it spreading
  • Cancer is found in nearby lymph nodes or other areas of the body
  • Additional treatment beyond surgery may be recommended
  • Your melanoma has returned after previous treatment
  • You would benefit from a multidisciplinary evaluation or a second opinion about your treatment options

An oncologist specializes in treating cancer and can help determine whether treatments such as immunotherapy, targeted therapy, or other systemic therapies should be considered. Even if your melanoma is currently being managed by a dermatologist, you can ask whether an oncology consultation is appropriate. Understanding all of your options can help you make informed decisions about your care.

Find a Melanoma Specialist

The melanoma specialists at Rocky Mountain Cancer Centers provide personalized evaluation and treatment for people diagnosed with melanoma, including those seeking a second opinion.