Epidermolytic palmoplantar keratoderma (EPPK) is a rare hereditary skin disorder characterized by changes in the structure and function of the stratum corneum of the epidermis, resulting in hypertrophy and thickening of the skin on the palms and soles. This disorder may be caused by mutations in genes responsible for the synthesis of intermediate filament proteins such as keratin. Patients experience severe erythema, scaling, and painful cracks, which leads to a significant deterioration in quality of life and functional capabilities. EPPK has various types of manifestations, which are washed both with clear symptoms and with obscured forms, which requires an integrated approach to diagnosis and treatment.
History of the disease and interesting historical facts
The history of understanding epidermolytic palmoplantar keratoderma goes back to the mid-19th century, when cases of skin diseases associated with hereditary factors were first described. However, it was only in the 20th century that scientists began to consciously associate the clinical manifestations of EPPK with specific genetic mutations. In 1998, key genes associated with this pathology were identified, which opened up new horizons for understanding its molecular mechanisms. Interestingly, different forms of EPPK can differ not only in severity, but also in familial predisposition, which makes it possible to study the hereditary and genetic aspects of the disease.
Epidemiology
Epidermolytic palmoplantar keratoderma occurs with a frequency of approximately 1 in 100,000 live births. Although the disease is considered rare, cases have been reported in all regions of the world, but with varying frequencies. Notably, genetic predisposition may influence the prevalence of the disease in populations with certain genetic legacies. Given limited access to specialized medical care, statistics may vary by region, making it difficult to accurately understand the epidemiology.
Genetic predisposition to this disease
Epidermolytic palmoplantar keratoderma is caused by mutations in genes encoding keratins, in particular KRT9 and KRT14. These genes are important for the formation of intermediate filaments in epidermal cells. Genetic predisposition to EPPK is autosomal dominant, which means that the presence of only one mutation in the gene can lead to the development of the disease. Moreover, in families in which the disease has already been recorded, the risk of passing it on to future generations is significantly increased.
Risk factors for the development of this disease
Risk factors for epidermolytic palmoplantar keratoderma are largely related to heredity. The most important factors include:
- The presence of sick relatives increases the likelihood of developing the pathology.
- Genetic mutations - specific mutations in the KRT9 and KRT14 genes.
- Environmental factors - exposure to chemicals or physical factors such as frequent exposure to water or direct sun can aggravate the skin condition.
These risk factors highlight the need for genetic counseling for family members with a history of this disorder.
Diagnosis of this disease
Diagnosis of epidermolytic palmoplantar keratoderma is based on clinical manifestations and a number of additional studies:
- Main symptoms: pronounced thickening of the skin on the palms and soles, painful cracks.
- Laboratory tests: dermatological examination of skin scrapings, molecular genetic tests to detect mutations.
- Radiological examinations: not used in routine practice, since the disease does not have specific radiographic signs.
- Other types of diagnostics: skin biopsy for histological examination.
- Differential diagnosis: it is necessary to exclude other dermatological diseases such as psoriasis and ichthyosis.
Treatment
Treatment of epidermolytic palmoplantar keratoderma is mainly symptomatic and aimed at alleviating the patient's condition:
- General treatment: includes preventive measures, skin care, avoiding injury.
- Pharmacological treatment: use of moisturizing creams, corticosteroids to reduce inflammation and itching.
- Surgical treatment: can be used in cases of painful cracks that require plastic surgery.
- Other treatments include physical therapy to improve skin condition and reduce sensitivity.
List of medications used to treat this disease
Medicines used to treat ELPK include:
- Moisturizing creams and ointments based on urea.
- Corticosteroids (eg, clobetasol).
- Antibacterial drugs for secondary infections.
- Preparations containing vitamins A and E to improve skin condition.
Disease monitoring
Monitoring the condition of patients with epidermolytic palmoplantar keratoderma includes regular examinations by a dermatologist and assessment of the progress of the disease:
- Control stages: regular examinations of the skin to assess the severity of symptoms.
- Prognosis: In most cases, the disease is chronic, but with proper care, the quality of life can be significantly improved.
- Complications: susceptibility to secondary infections, need for surgical correction.
Age-related features of the disease
Epidermolytic palmoplantar keratoderma can occur at any age, but is most often diagnosed in childhood or early adulthood. In newborns and children, symptoms may be less pronounced, but they can worsen over time. Adults often experience chronic symptoms, especially if skin care is inadequate.
Questions and Answers
- What are the main symptoms of epidermolytic palmoplantar keratoderma? The main symptoms include thickening of the skin on the palms and soles, painful cracking and peeling.
- Is it possible to avoid the development of this disease? Because ELPK is genetic, prevention measures may be limited, but avoiding physical and chemical damage to the skin may reduce the severity of symptoms.
- How do you know when you need to see a doctor? If you or your child experience any of the symptoms described above, including severe pain and worsening skin condition, you should consult a dermatologist.
- How can you alleviate the symptoms of the disease? Using moisturizers and monitoring the condition of the skin surface can significantly reduce the manifestation of symptoms.
- What is the likelihood of transmitting the disease to children? Palmoplantar epidermolytic keratoderma has an autosomal dominant inheritance pattern, meaning the probability of transmission is approximately 50%.
Advice from Dr. Oleg Korzhikov
According to Dr. Oleg Korzhikov, it is important to remember that epidermolytic palmoplantar keratoderma requires a comprehensive approach to treatment. If symptoms are present, the following is recommended:
- Moisturize your skin regularly, especially during winter, to avoid excessive dryness.
- Use protective gloves and shoes in conditions where there is a high risk of injury.
- Consult a doctor if new skin problems develop or if your current condition worsens.
Following these recommendations will help improve your quality of life and minimize discomfort associated with the disease.
