How Do I Identify a Cancerous Mole?

From a medical point of view, pigmented moles growing in areas that are often subject to friction must be given enough attention. Repeated and repeated frictional stimuli can cause very few normal pigmented moles to become malignant melanoma. Malignant melanoma has a better prognosis if it can be detected, diagnosed and treated early. According to literature reports, patients in the first stage can live on average for more than five years. However, if it is found late, the prognosis is often poor.

Basic Information

Visiting department

Dermatology, Oncology

Common locations

Skin, mucous membrane

Common causes

Long-term stimulus

Contagious

no

Moles cancerous epidemiology

According to the latest research, malignant melanoma has become the fastest growing malignant tumor among all malignant tumors in recent years, with an annual growth rate of 3% to 5%.

There are many types of melanoma, but they are generally divided into four basic types internationally, namely, acromicular type, mucosal type, chronic sunlight damage type and non-chronic sunlight damage type (including the type of unknown primary lesion). Countries are mainly of the former two types.

Causes of Moles Carcinogenesis

Repeated and repeated frictional stimuli can turn a very small number of normal pigmented nevus into malignant melanoma.

Clinical manifestations of moles cancer

Many malignant melanomas have some abnormal manifestations during the early stage of malignancy. We summarize it as the ABCDE rule.

Specifically:

A. Asymmetry, half of the pigment nevus looks asymmetric with the other half;

B. Border-irregularity, with irregular edges or cuts, jagged edges, etc., does not have a smooth round or oval contour like normal pigmented moles;

C. Color-Variation. Normally pigmented nevus is usually monochromatic, while malignant melanoma mainly appears as turbid black. It can also have brown, brown, brown-black, blue, pink, black and even white. Different colors;

D. Diameter. Pay attention when the diameter of pigment spots is larger than 5-6mm or when pigment spots grow up. Usually larger than ordinary moles: Watch out for pigmented moles that are larger than 5mm in diameter. Excisional biopsy is best for pigmented nevi with a diameter greater than 1 cm;

E. Elevation, some early malignant melanoma, the whole tumor will have a slight bulge.

In addition to the ABCDE rule, growth rate is often one of the factors we need to consider, such as some pigmented moles that have not changed for many years, which have significantly increased within weeks or months; in addition, the pigmented moles that have always been hairy The possibility of malignant transformation should also be considered if it falls off or breaks and does not heal easily.

Moles cancerous examination

Once the pigmented nevus has the above abnormalities, further examination is needed. The ultimate criterion for the diagnosis of malignant melanoma is resection biopsy and pathological diagnosis. Immunohistochemical staining is the main auxiliary method to identify malignant melanoma.

Moles cancerous diagnosis

Diagnosis can be confirmed based on clinical manifestations and related examinations.

Moles cancerous treatment

At present, the main methods for the treatment of malignant melanoma include surgical resection, chemoradiotherapy, and immune targeted therapy.

Mole cancer prognosis

According to literature reports, patients in the first stage can live on average for more than five years. However, if it is discovered late, the prognosis is often poor. Most patients with malignant melanoma can only survive for 1 to 2 years. However, the advent of some new chemotherapy drugs and targeted treatment drugs in recent years has made the survival time of patients with malignant melanoma It has been extended further.

Moles cancer prevention

Less physical or chemical stimulants are used to stimulate pigmented nevus for a long time, and it is not possible to use knife cutting, salting, etc. for local stimulation, because long-term and repeated bad stimulation is one of the important factors of normal pigmented nevus.