An inherited disorder characterized by an increased number of lentigines (freckle-like spots).
Causes, incidence, and risk factors
Multiple lentigines syndrome is inherited as an autosomal dominant trait. Affected people have large numbers of lentigines (freckle-like lesions present from birth and somewhat darker than true freckles) as the most obvious sign. These are located mostly on the trunk and neck. Affected people also have wide-set eyes (hypertelorism), prominent ears, nerve deafness (partial), and cafe-au-lait spots (light brown birthmarks). Additional findings include mild pulmonic stenosis and changes in the ECG . Affected people may have abnormal genitalia ( cryptorchidism ), hypogonadism , or delayed puberty.
Signs and tests
A physical examination may show signs of mild pulmonic stenosis (obstruction of the pulmonic heart valve) and obstructive cardiomyopathy . Tests:
ECG , may show abnormalities hearing testendocrine evaluation
Treatment
Treatment is directed toward the correctable problems. The degree of hearing loss must be determined and appropriate hearing aids supplied. Intervention at the expected time of puberty may be necessary in order precipitate the normal changes of puberty.
Expectations (prognosis)
Most patients adjust very well with proper attention to their specific problems.
Complications
Complications are variable:
deafness delayed puberty heart problems infertility
Calling your health care provider
Call your health care provider if there are symptoms of this disorder. Call for an appointment with your health care provider if you have a family history of this disorder and plan to have children.
Prevention
Genetic counseling is recommended for prospective parents with a family history of multiple lentigines syndrome.