How does skin pruritus blacken return a responsibility?

summary

Black skin with pruritus is one of the main symptoms of acanthosis nigricans. Acanthosis nigricans, as a common skin disease, is divided into benign and malignant types, belonging to genetic syndrome. Benign acanthosis nigricans usually has nothing to do with visceral diseases and mainly presents irregular autosomal dominant inheritance. Benign acanthosis nigricans often occurs in adolescence. In addition to heredity, benign acanthosis nigricans can be accompanied by pituitary, adrenal and ovarian tumors; Malignant acanthosis nigricans is associated with visceral tumors. In general, malignant tumor is primary and dermatosis is secondary. The diagnosis of the disease will be introduced in detail.

How does skin pruritus blacken return a responsibility?

First of all, we should clarify the pathogenesis of the disease. Although acanthosis nigricans can be divided into many types, the appearance of each type of acanthosis nigricans is the same, but the severity is different. Generally, it appears in the order of armpit, flexion of neck, vulva, inner thigh, face, elbow, popliteal fossa, navel, back of hand, areola, foot, eyelid and nasal vestibule, which is symmetrical.

In addition, when the disease worsens, the external performance will also change further. The oral mucosa of the patients showed velvety coat like lesions on the tongue, and tumor like vegetations appeared on the nipple, which may also occur in the lip and palate. When skin lesions occur, patients with acanthosis nigricans can produce some subjective symptoms and pruritus, pruritus is more common in malignant acanthosis nigricans, sometimes very serious.

In addition to the above conditions, the diagnosis of acanthosis nigricans should be considered according to the increase of pigment in skin folds, verrucous proliferation and papillomatous hyperplasia. In addition, the most important thing is to distinguish between benign and malignant. Acanthosis nigricans usually occurs in adults with severe damage. The limbs and mucous membranes are often involved. The pigmentation is significant, and the skin lesions are serious day by day with pruritus.

matters needing attention

Finally, it is necessary to remind the majority of patients that they must cherish their body in daily life, always pay attention to their health, and seek medical treatment immediately in case of discomfort, so as to prevent missing the best treatment opportunity.