Becker nevus syndrome

Becker nevus syndrome is a condition where a skin lesion known as a Becker nevus is found along with other physical differences that can affect the skin, muscles, bones, and sometimes the breast. These differences usually appear on the same side of the body as the nevus. Often, people with this condition may have differences such as underdevelopment of a breast or abnormalities in the shoulder, arm, or spine. The changes in the body are noticeable at birth or develop later in life, and the condition happens sporadically, meaning it typically does not run in families.

Common signs include the presence of a Becker nevus along with underdevelopment (hypoplasia) of the breast, deficiencies in the shoulder or arm, abnormal rib formations, and scoliosis. These features usually occur on the same side of the body as the nevus. Other skin and muscular abnormalities can also be present.

The exact cause of Becker nevus syndrome is not fully understood. It is considered a sporadic condition, which means it tends to occur by chance and usually does not run in families. Research has pointed to a possible genetic role, with the ACTB gene being mentioned in relation to this condition.

Treatment for Becker nevus syndrome varies depending on the specific symptoms and the extent of the condition. Options are tailored to the individual and may include surgical procedures or other approaches to manage or improve the appearance of the nevus and associated physical differences.

Information about prognosis is currently limited for this condition.

Information about current research and future directions is currently limited for this condition.