Basal Cell Carcinoma (Basalioma): Symptoms, Causes, and Treatment

Basal cell carcinoma (basalioma): how it looks, why it develops, when to see a doctor, and how it is treated — a practical guide from Radeski Skin Clinic.

What is basal cell carcinoma (basalioma)?

Basal cell carcinoma — often called basalioma — is one of the most common skin cancers. It starts in cells of the basal layer of the epidermis, the deepest part of the outer skin.

Despite the word “cancer,” basalioma usually grows slowly and very rarely spreads to distant organs. That does not mean it is safe to ignore. Without care, the growth enlarges over time and can damage nearby tissues. Any suspicious skin spot should be checked by a doctor.

How does it look?

Early on it may be small and easy to miss — sometimes mistaken for a mole, pimple, or simple sore.

Typical clues include:

• a shiny or translucent “pearly” papule;
• a pink, reddish, or skin-colored lesion;
• a sore that will not heal;
• a crust that falls off and returns;
• bleeding after even mild trauma;
• a firm patch of skin;
• gradual enlargement;
• an ulcer with raised edges.

It most often appears on sun-exposed areas: face, nose, ears, eyelids, neck, scalp, and other open skin.

Why does it develop?

The main risk factor is long-term ultraviolet (UV) exposure.

Risk rises with:

• frequent sun time;
• sunburns, especially in childhood;
• regular tanning beds;
• fair skin that burns easily;
• years of cumulative sun load;
• a prior skin cancer;
• some immune-weakening conditions.

Still, basalioma can appear even in people who do not think of themselves as “sun lovers.”

How dangerous is it?

Compared with many other skin cancers, basalioma grows more slowly and has a low chance of metastasis.

But it can destroy tissue locally — skin, fat, cartilage, and sometimes deeper structures. Delay is especially risky near the eye, nose, ear, or other complex anatomy.

How to tell it from a simple sore or mole?

You cannot confirm the diagnosis by look alone.

Be concerned if a lesion:

• does not heal for weeks;
• keeps forming a crust;
• bleeds now and then;
• enlarges;
• changes shape or appearance;
• seems to heal, then returns in the same place.

Not every such change is cancer — other conditions can look similar. A doctor makes the final call.

How is it diagnosed?

First comes an exam by a dermatologist or dermato-oncologist.

Dermoscopy often follows — magnified inspection that reveals structures invisible to the naked eye.

If needed, a biopsy is advised: a small tissue sample is studied in the lab. Histology confirms or rules out basal cell carcinoma.

How is it treated?

The method depends on size, location, subtype, depth, and other factors:

• surgical removal;
• margin-controlled excision techniques;
• topical medicines for some superficial forms;
• photodynamic therapy in suitable cases;
• radiation therapy;
• systemic treatment for rare advanced forms.

The plan is individual after exam and confirmation. Earlier detection usually means simpler treatment and better preservation of healthy tissue.

Can it be prevented?

Risk cannot be reduced to zero, but it can be lowered:

• use high-SPF sunscreen;
• reapply during long sun exposure;
• wear a hat and protective clothing;
• limit direct midday sun;
• avoid tanning beds;
• check your skin regularly;
• see a dermatologist for suspicious spots.

When to see a doctor

See a dermatologist if a new sore, nodule, or patch does not heal, grows, bleeds, or keeps crusting — especially on the face and other sun-exposed areas.

Bottom line

Basal cell carcinoma is usually very treatable when found early. Do not wait for a lesion to become large or painful. Any long-lasting or changing spot is worth a medical review.

This article is for general information and does not replace a doctor’s consultation.