Most squamous cell carcinomas (SCCs) of the skin can be cured when found and treated early. Treatment should happen as soon as possible after diagnosis, since more advanced SCCs of the skin are more difficult to treat and can become dangerous, spreading to local lymph nodes, distant tissues and organs.
Patients with stage I, II, or III cancer have the best survival, whereas patients with stage IV or recurrent cancer who are older than 66.5 years have the worst survival.
Most (95% to 98%) of squamous cell carcinomas can be cured if they are treated early. Once squamous cell carcinoma has spread beyond the skin, though, less than half of people live five years, even with aggressive treatment.
Squamous cell carcinoma is most curable in the early stages before it spreads. If it's diagnosed early, the five-year survival rate is approximately 99%.
Metastasis of cutaneous squamous cell carcinoma (cSCC) is rare. However, certain tumor and patient characteristics increase the risk of metastasis. Prior studies have demonstrated metastasis rates of 3-9%, occurring, on average, one to two years after initial diagnosis [6].
Signs and symptoms of metastatic squamous neck cancer with occult primary include a lump or pain in the neck or throat. Check with your doctor if you have a lump or pain in your neck or throat that doesn't go away. These and other signs and symptoms may be caused by metastatic squamous neck cancer with occult primary.
Treatment should happen as soon as possible after diagnosis, since more advanced SCCs of the skin are more difficult to treat and can become dangerous, spreading to local lymph nodes, distant tissues and organs.
They are of concern because of the similarity to squamous cell cancer. Squamous cell carcinoma is one of the three most common types of skin cancer. Basal cell, squamous cell, and melanoma. Squamous cell cancers can metastasize (spread) and should be removed surgically as soon as they are diagnosed.
In general, the squamous cell carcinoma survival rate is very high—when detected early, the five-year survival rate is 99 percent. Even if squamous cell carcinoma has spread to nearby lymph nodes, the cancer may be effectively treated through a combination of surgery and radiation treatment.
Most squamous cell carcinomas of the skin can be completely removed with relatively minor surgery or occasionally with a medicine applied to the skin. Which treatments are best for you depends on the size, location and aggressiveness of the tumor, as well as your own preferences.
Stage 4 squamous cell carcinoma
In stage 4, the cancer can be any size and has spread (metastasized) to one or more lymph nodes which are larger than 3 cm and may have spread to bones or other organs in the body.
It is estimated that about 2,000 people die from basal cell and squamous cell skin cancer each year. Older adults and people with a suppressed immune system have a higher risk of dying from these types of skin cancer. It is estimated that 7,990 people will die from melanoma in the United States in 2023.
Melanoma skin cancer that has spread to other parts of the body (called distant metastases), such as the lung, the liver or the brain, has a poor prognosis.
“Aggressive SCC” or “high-risk SCC” is cancer that is more likely to recur (return after initial treatment) or metastasize (spread to other parts of the body). Features of high-risk SCC are: Larger than 2 centimeters (cm) Deeper than 2 millimeters (mm)
Large size (>2 cm). Thick or deeply invasive lesion (>4 mm).
About 60 percent of people who have had one skin cancer will be diagnosed with a second one within 10 years, says a 2015 study in JAMA Dermatology. Your odds increase dramatically if you've been diagnosed with a second BCC or SCC (or third, or any other number beyond first).
Squamous cell carcinoma rarely metastasizes (spreads to other areas of the body), and when spreading does occur, it typically happens slowly. Indeed, most squamous cell carcinoma cases are diagnosed before the cancer has progressed beyond the upper layer of skin.
Although squamous cell carcinoma can be more aggressive than basal cell cancer, the risk of this type of cancer spreading is low—as long as the cancer is treated early, Dr. Leffell says. He notes that the lesions must be treated with respect because they may grow rapidly and invade deeply.
If you've had SCC, you have a high chance of recurrence. You also have an elevated risk of developing another SCC or basal cell carcinoma (BCC), since sun damage is the primary cause of both forms of skin cancer. If you have had a previous diagnosis of BCC, you also have a greater chance of developing SCC.
Treatment overview
In June 2020, pembrolizumab (Keytruda®) was approved by the FDA for the treatment of recurrent or metastatic SCC that is not curable by radiation or surgery. In July 2021, the FDA expanded this approval to include SCC that is locally advanced and not curable by radiation or surgery.
Systemic chemotherapy is not widely used for treating squamous cell carcinoma. In most cases, the cancer cells are confined to one area of skin and, if detected early, can be effectively addressed with localized treatments, such as surgery.
The key warning signs are a new growth, a spot or bump that's getting larger over time, or a sore that doesn't heal within a few weeks. (See Signs and Symptoms of Basal and Squamous Cell Skin Cancer for a more detailed description of what to look for.)
The recommended treatment for cutaneous squamous cell cancer (CuSCC) of the head and neck is Mohs surgical excision or wide local excision. Excision is recommended to a gross surgical margin of 4–6 mm however this is based on limited evidence and specify a goal histologic margin.
Yes, you might be able to pick this crusty lesion off with your fingers. But it would grow back. The right thing to do is see a dermatologist and have it removed.
Squamous Cell Carcinoma Early Stages
At first, cancer cells appear as flat patches in the skin, often with a rough, scaly, reddish, or brown surface. These abnormal cells slowly grow in sun-exposed areas.