exfoliative keratolysis
Introduction
Introduction to exfoliative keratosis The disease is a superficial exfoliative skin disease of the stratum corneum of the palm of the hand. The cause of the disease is unknown. The white spot of the size of the millet is gradually enlarged to the periphery. It is similar to the dry film of the blister fluid, which is easily broken or torn. Peeled into thin paper-like scales, no obvious inflammatory changes, no itching, symmetrical in the palm of the hand, a few involved the sole. The disease occurs in the spring and summer or autumn and winter. A low concentration of exfoliating agent or a mild lubricant can be used for treatment. basic knowledge The proportion of illness: 0.02% Susceptible people: no specific population Mode of infection: non-infectious Complications: hyperhidrosis
Cause
The cause of exfoliative keratosis
Cause:
It is not certain that Mac Kee and others believe that it is a sputum rash, but many patients do not have fungal infections; Becker et al believe that this disease is a congenital disease, hyperhidrosis may be a cause.
Sputum rash (25%):
A bacillary rash is a secondary allergic inflammatory response of the skin to the infected dermatophytes. The active dermatophytosis active lesion releases the fungal antigen, which is carried by the bloodstream to the surrounding skin or away from the skin of the lesion. An antigen-antibody reaction occurs that causes pruritic erythema, papules, or vesicular damage.
Hyperhidrosis (30%):
Hyperhidrosis refers to the abnormal increase in sweating of local or systemic skin. True systemic hyperhidrosis is rare, and even hyperhidrosis caused by systemic diseases occurs mainly in certain areas. Systemic hyperhidrosis is mainly caused by other diseases such as extensive hyperhidrosis, such as infectious high fever. Local hyperhidrosis often occurs in children or adolescents, often with a family history and a tendency to naturally reduce after adulthood.
Prevention
Exfoliative keratosis prevention
Let the children eat some egg yolk, pork liver, carrots, spinach, oranges, tomatoes and other foods rich in vitamin A, and try to let children drink plenty of water to alleviate the lack of water in the dry climate.
Complication
Exfoliative keratolytic complications Complications hyperhidrosis
The disease mainly affects the palmar sac, and occasionally can be seen in the hand, the dorsal side of the foot, symmetric distribution, the beginning of the lesion is the white point of the needle, formed by the cuticle of the epidermis and the lower part, no inflammation changes, and gradually expands to the periphery. The blister-like dry film is easily ruptured or torn into thin paper-like scales. The skin underneath is normal, the skin lesions are expanding, new scaly areas occur, and finally fused into a whole piece of peelable scales, no itching, this The disease easily recurs in the warm season, often combined with local hyperhidrosis.
Symptom
Exfoliative keratosis symptoms common symptoms scaly peeling itching and sweating reduction
The skin lesions began as white spotted blister with large needles scattered. The number of the lesions was variable, gradually expanding around, and the central rupture formed superficial desquamation. It can be fused into a sheet like a thin paper-like epidermis. The skin under the exfoliated epidermis is almost completely normal. Lack of signs of inflammation. Often the symmetry occurs in the palm of the hand. The course of the disease is slow, and there is no self-consciousness. After 2 to 3 weeks, the scales naturally fall off and healed. Every spring and late summer began to develop. The autumn climate turned cold and relieved by itself. Adults were more common.
Examine
Examination of exfoliative keratosis
No need to check, according to the lesions only scaly and no blister formation and inflammation changes, no itching and the characteristics of the distribution site, the diagnosis is not difficult. In the late spring and early summer, the onset of the disease is more common in adults. The skin lesions begin as white punctate blister with scattered needles. The number is variable, gradually expanding around, and the central rupture forms superficial desquamation. Most lesions expand and can be merged into The thin film-like epidermis is exfoliated, and the skin under the exfoliated epidermis is almost completely normal, lacking signs of inflammation, often occurring symmetrically in the palmar palpebral area, and can be diagnosed.
Diagnosis
Diagnosis and identification of exfoliative keratosis
diagnosis
According to the skin lesions only scaly and no blister formation and inflammation changes, no itching and the characteristics of the distribution site, the diagnosis is not difficult, the disease is more common in adolescents, the incidence of both sexes is equal, more common in patients with super-sweat, more common in spring, autumn During the season, it suddenly appeared in the palm of both hands, and occasionally on both feet. The red spots of the needles were visible under the palms of both palms. It consciously itching, and then evolved into a small blisters of miliary, followed by a collar-like peeling, layer by layer. Exfoliation, especially in large and small fish, the end of the palm of the finger, a large number of exfoliation, the patient can reveal thin skin after tearing, at this time, sweating is reduced, bilateral symmetry occurs, and can be completely restored to normal skin after exfoliation. Every spring and autumn relapse.
The skin lesions began as white spotted blister with large needles scattered. The number of the blister was uneven, gradually expanding around, and the central rupture formed superficial desquamation. Most of the lesions expanded and could be fused into a sheet like a thin paper-like epidermis, exfoliated under the epidermis. The skin is almost completely normal, lacking signs of inflammation, often occurring symmetrically in the palmar palpebral, with a slow course of disease and no symptoms. After 2 to 3 weeks, the scales naturally fall off and heal, and every spring and early summer begins to develop, and the autumn climate turns cold. Self-relieving, more common in adults.
Differential diagnosis
Should be identified with sweat herpes, the latter rash is the most deep small blisters, red or consistent with the skin color, there is a mucous liquid in the blister, can form a pustule with significant inflammation when infected, consciously itching or burning sensation, often in spring At the turn of the summer, when the temperature suddenly changes.
