Seborrheic keratosis

Seborrheic keratosis is a benign dermatological formation that occurs on the skin, characterized by the presence of brown or black rough papules or plaques. This disease is often observed in older people and is caused by excessive proliferation of cells of the stratum corneum of the epidermis. Seborrheic keratosis, although not a health threat, can cause aesthetic discomfort and, in some cases, be a source of confusion with more serious skin pathologies, such as melanoma. The appearance of such formations is associated with the influence of many factors, including age, sun radiation, and genetic predisposition.

History of the disease and interesting historical facts

Seborrheic keratosis was first described in medical literature in the early 19th century. At that time, scientists began to differentiate between different forms of benign skin growths. Interestingly, this condition was often mentioned in the works of famous dermatologists such as M. Dermastin and A. Keratosis, who studied skin cancer. In the 20th century, studies were conducted demonstrating a link between seborrheic keratosis and UV radiation, which contributed to the awareness of its potential formation under the influence of the sun. Historically, this condition was often associated with the aging process of the skin, but modern medicine understands that it can also occur in younger patients.

Epidemiology

According to various medical studies, seborrheic keratosis occurs in approximately 20% of the population over 40 years old, and by the age of 70 this percentage increases to 80-90%. The distribution of the disease also has geographical features: in sunny regions there is a high incidence, which is associated with increased solar radiation affecting the skin. Men and women suffer from this disease equally, but studies show that women are more likely to seek medical help for aesthetic reasons.

Genetic predisposition to this disease

Currently, available data indicate that genetic predisposition may play an important role in the development of seborrheic keratosis. The study of genes responsible for epidermal maturation and differentiation indicates possible mutations in the swift and keratin genes. At the same time, the study of family histories shows that patients with such formations often have a hereditary background, which indicates a possible polygenic heredity. Some scientists emphasize that the presence of certain alleles associated with the immune response may increase the risk of developing seborrheic keratosis.

Risk factors for the development of this disease

Risk factors for the development of seborrheic keratosis include the following:

• Age: The risk of developing the disease increases with each decade of life.
• Sun exposure: Long-term exposure to ultraviolet rays significantly increases the likelihood of developing skin lesions.
• Genetic predisposition: presence of cases of seborrheic keratosis in the family.
• Immune disorders: Patients with a weakened immune system have a higher risk of developing skin lesions.
• Skin injuries: Trauma and inflammation of the skin can contribute to the formation of seborrheic keratosis.

Diagnosis of this disease

Diagnosis of seborrheic keratosis is often made based on clinical imaging. The main symptoms include:

• The appearance of rough, brown or black plaques on different areas of the skin.
• Sensitivity and itching in the area of the neoplasms.
• The formations are usually located on exposed areas of the skin, such as the face, neck, shoulders and back.

Laboratory tests may include biopsy to rule out other dermatologic conditions. Radiologic examinations are usually not necessary, as seborrheic keratosis does not suggest systemic involvement. Differential diagnosis includes conditions such as melanoma, basal cell carcinoma, and other dermatologic lesions. It is important to note that self-diagnosis is determined by a dermatologist or dermatopathologist based on histopathologic analysis.

Treatment

Treatment of seborrheic keratosis can be both local and surgical. In most cases, patients seek removal of formations for aesthetic reasons. The main treatment methods include:

• Pharmacological treatment: the use of acids such as salicylic or glycolic acid to soften and exfoliate the mass of keratoses.
• Cryotherapy: freezing of formations using liquid nitrogen.
• Laser removal: an effective method that removes formations with minimal trauma to surrounding tissue.
• Surgical excision: used mainly in severe cases or when malignancy is suspected.
• Electrocoagulation: A procedure used to destroy tissue mass using an electric current.

List of medications used to treat this disease

There are various medications that can be used to treat seborrheic keratosis, including:

• Salicylic acid (powders and ointments).
• Glycolic acid (exfoliating creams).
• Topical retinoids (eg, adapalene).
• Creams containing vitamin D (eg, calcipotriol).
• Cryotherapy preparations (liquid nitrogen sprays).

Disease monitoring

Monitoring the patient's condition with seborrheic keratosis includes regular check-ups with a dermatologist, especially if the patient experiences changes in the shape or color of the lesions. Control stages are important for early detection of possible complications, such as inflammation or malignant changes. The prognosis for patients suffering from seborrheic keratosis is generally favorable, but uncontrolled development of the disease can lead to discomfort and delay in establishing the correct diagnosis. Complications may include infectious processes in the area of the lesions or psychological aspects that the patient may experience due to low self-esteem.

Age-related features of the disease

Seborrheic keratosis usually appears in old age, but in some people it can appear at a young age. People with lighter skin are more likely to develop this disease. Seborrheic keratosis is almost never seen in children and adolescents. With age, the number and size of formations can increase, but they usually do not lead to a significant deterioration in health.

Questions and Answers

• What is seborrheic keratosis? Seborrheic keratosis is a benign skin growth that occurs on the surface of the skin and appears as rough, brown or black, flat lesions.
• What are the main treatments for seborrheic keratosis? Main treatment methods include cryotherapy, laser removal, surgical excision and topical acid application.
• What is the prognosis for patients with seborrheic keratosis? The prognosis is generally favorable, but regular monitoring is required to exclude malignancy or inflammatory processes.
• Can seborrheic keratosis be prevented? It is difficult to completely prevent seborrheic keratosis, but reducing sun exposure can reduce the risk of developing it.
• What are the possible complications of seborrheic keratosis? Complications include the possibility of infection in the area of the formations and psychological discomfort due to cosmetic issues.