fossa keratolysis
Introduction
Introduction to follicular keratosis Pitted keratinolytic (pittedkeratolysis), also known as keratolysis plantarsulcatum, is more common in tropical and subtropical areas, and is prone to this disease in people who have been exposed to soil and water for a long time. Its clinical feature is that the skin of the ankle is ring-shaped or pitting. basic knowledge The proportion of illness: 0.001% Susceptible people: no special people Mode of infection: non-infectious Complications: bacterial infections sepsis and bacteremia
Cause
The cause of follicular keratosis
(1) Causes of the disease
The pathogenic bacteria of the disease can not be fully understood. Actinomycetes, nocardia, gypsum-like fungi, and streptomyces have been reported. Warm and humid is a necessary condition for the onset.
(two) pathogenesis
The pathogenesis is still unclear.
Prevention
Prevention of follicular keratosis
When sweating, it can be used locally for 20% to 40% formalin solution, and should be kept dry locally.
Complication
Complications of follicular keratosis Complications bacterial infection sepsis and bacteremia
The disease is usually accompanied by the rupture of the skin mucosa, the integrity of the skin is destroyed, so it can cause skin bacterial infection or fungal infection due to scratching, usually secondary to low body, or long-term use of immunosuppressive agents and fungal infections such as nail fungus. Patients, such as concurrent bacterial infections, may have symptoms such as fever, swelling of the skin, ulceration, and purulent secretion. Severe cases can lead to sepsis, which should be brought to the attention of clinicians.
Symptom
Symptoms of horny keratosis common symptoms exfoliative dermatitis ulcer appearance of crater-like lesions can be angular protuberance
In the ankle and lower toe, there is a large number of superficial horny layer denudation, which is scattered, and the edge is surrounded by a ring-shaped black groove. It is crater-like, and the lesions can be fused to each other in an irregular shape. Sweat, there may also be impregnation, no inflammation in the skin lesions, no symptoms, severe redness and swelling after a long walk, the incidence is related to the season, summer heavy winter, long course, and lasts for several years.
Examine
Examination of follicular keratosis
Histopathology: The localized defect of the upper stratum corneum is generally not more than 2/3 of the stratum corneum. The keratin around the defect is homogenized. Gram-positive cocci and filamentous bacteria can be seen at the bottom of the defect.
Diagnosis
Diagnosis and differentiation of litter horny lysis
Diagnosis can be based on clinical manifestations and histopathological features.
