Pigmented perioral erythema

Introduction to pigmented oral erythema Erythrocyte erythema (erythroseperibuccalepigmentaire) is also called erythrosis pigmentation (erythrosispigmentaciei), Brocq pigmented erythema erythema (erythrosisperibuccalepigmentarieofBrocq). The clinical manifestation is the appearance of erythema and pigmentation in the middle of the face. basic knowledge The proportion of illness: rare incidence, the incidence rate of family history is about 5%, no family history is about 0.03% - 0.06% Susceptible people: no special people Mode of infection: non-infectious Complications: typhus

Pigmented perioral erythema

(1) Causes of the disease

The cause is still unknown, and may be related to the photosensitivity contained in cosmetics. It is also thought to be related to dysfunction of vasomotor nerves, abnormal metabolism of serotonin and seborrheic dermatitis, and patients are mostly seborrheic.

(two) pathogenesis

The pathogenesis is still unclear.

Pigmented perioral erythema prevention

Remove the cause and avoid irritating diets such as alcohol and coffee.

Pigmented erythema erythema Complications typhus

Pigmented skin lesions, macules.

Pigmented erythema erythema symptoms common symptoms pigment spots

The disease is more common in middle-aged women. It can also be seen in men. It is diffuse erythema around the mouth. It can change into brown or brownish red spots for a long time. It has a narrow normal skin band between the lips and can spread to the forehead. In the forehead and lower jaw, individual patients are limited to the mouth and mandibular angle. After the inflammation subsides, the pigmentation usually lasts for a long time. After the cause is removed, it can gradually disappear, which may be accompanied by Civatte skin heterochromia.

Examination of pigmented oral erythema

Histopathology: epithelial melanosomes and melanocytes increased, dermal papillary vasodilatation, inflammatory cell infiltration.

Diagnosis and differentiation of pigmented erythema

According to the clinical manifestations, the characteristics of skin lesions and histopathological features can be diagnosed.

Should be differentiated from perioral dermatitis.

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