Acanthosis nigricans (AN) is a common skin condition characterised by thickening (hyperkeratosis) and darkening (hyperpigmentation) of the skin with a velvety texture. To mention, AN is not a skin disease but its occurrence may indicate an underlying disease. This disorder of the skin often affects folded areas of the body like neck, armpits, groin, elbows, knuckles, palms and knees .
AN is common in both men and women, especially in people who are obese, have diabetes or are prediabetics, have darker skin or belong to areas where the prevalence of darker skin is more like Africa and the Caribbean . It can also be a sign of underlying tumour which may be benign or malignant. A malignant (cancerous) form of AN usually occurs in people above the age 40 while the benign (noncancerous) AN is evident during childhood. Also, if AN is present from childhood, there's a huge possibility that the child may develop diabetes in the coming years.Causes Of Acanthosis Nigricans
The common causes of AN are as follows:
Symptoms of AN are identified by the following:
In the case of malignant AN, the symptoms are more severe. They are as follows:
The risk of AN is increased in individuals who
As aforementioned, a child with AN is more prone to developing diabetes type 2 in the coming years.Diagnosis Of Acanthosis Nigricans
The condition is diagnosed through the following methods.
The treatment of AN is usually carried out by treating the condition causing it. In this way, the symptoms can be controlled and the dark-thick patches on the skin totally fade away.
However, one can go for some basic treatment methods mentioned below in case they are concerned about their appearance. They are as follows:
If AN is malignant, medical experts may suggest for surgery, a process in which the tumour is surgically removed to prevent the spread of thick, dark and velvety patches on the skin. It also includes chemotherapy and radiation therapy.Prevention Of Acanthosis Nigricans