Squamous Cell Carcinoma

When it usually starts

When it usually starts

Daily care

Daily care for Squamous Cell Carcinoma

Treatments

Treatments for Squamous Cell Carcinoma

Strong evidence

Mohs Surgery

The tumor is removed a layer at a time and each layer is checked under the microscope during the same appointment, so the surgeon stops as soon as the edges are clear. It gives the highest cure rate and takes the least normal skin, which is why it is used on the face, ears, lips, hands, feet and genitals, and for large, recurrent or aggressive tumors. It is a long appointment rather than a difficult one.

Strong evidence

Excision

The standard removal: the tumor is cut out with a margin of normal skin around it and the wound is stitched closed, usually in one visit under local anesthetic. It cures the large majority of straightforward tumors on the trunk, arms and legs. The margins are checked afterwards rather than during, so occasionally a second procedure is needed to clear an edge.

Moderate evidence

Electrodesiccation and Curettage

The tumor is scraped out with a small loop and the base is sealed with an electric current, repeated a few times in one sitting. It is quick and effective for small, thin, low-risk tumors on the trunk and limbs. It is not used on the face, on large or recurrent tumors, or anywhere depth matters, because nothing is sent for margin checking and it leaves a round pale scar.

Moderate evidence

Cryotherapy

A quick freeze in clinic, used for actinic keratoses and occasionally for a small patch of carcinoma in situ. It is a treatment for the step before this cancer, not for the cancer itself. Freezing an invasive tumor leaves cells behind at depth and hides what is happening under a healing crust.

Limited evidence

Photodynamic Therapy

A light-activated cream treatment for the earliest forms only — actinic keratoses and some cases of carcinoma in situ. It treats a whole patch of sun-damaged skin at once and heals with a good cosmetic result. It has no role in an invasive tumor, and using it on one delays proper removal.

Skin Biopsy

Nothing else on this page happens without it. Even an experienced dermatologist with a dermatoscope cannot settle this by looking, and the report says far more than yes or no — how deep it goes, how aggressive the cells look, whether it is tracking along a nerve. Those details choose the treatment. It takes a few minutes under local anesthetic and leaves a small wound. A biopsy does not make cancer spread.

Outlook

What to expect with Squamous Cell Carcinoma

Left alone, this follows a predictable path. It does not resolve, and the stages below take years, or weeks to months in immunosuppressed people. Most people are cured by removal, though new skin cancers are common afterward, so regular skin checks are part of the treatment.

1. 1

   Field damage · Years of exposure

   Sun-damaged skin develops rough patches, mottled color and broken vessels. The ground is prepared, no cancer yet.

2. 2

   Actinic keratosis · Precancer

   A rough, scaly, sandpapery patch. Any single one is unlikely to become cancer, but they mark skin that can.

3. 3

   Carcinoma in situ · Early cancer

   A persistent scaly red or darker patch that looks like eczema or psoriasis but never responds to creams. The cells are still confined to the top layer.

4. 4

   Invasive tumor · Weeks to months

   A firm, tender bump or a sore that will not heal, often crusted, often bleeding when caught. It grows steadily. Untreated it grows into fat, cartilage, muscle or bone and can track along nerves. That turns a small removal into a large reconstruction.

5. 5

   Spread · Uncommon but serious

   A small percentage spread to nearby lymph nodes and occasionally further. Higher risk with large or deep tumors, ear or lip sites, recurrence, and immunosuppression.

When to get help

When to get help