Dysplastic nevus syndrome

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Dysplastic nevus syndrome
Synonyms	Familial atypical multiple mole melanoma syndrome (FAMMM)
Pronounce	N/A
Specialty	N/A
Symptoms	Multiple atypical moles, increased risk of melanoma
Complications	Melanoma, skin cancer
Onset	Usually in adolescence or early adulthood
Duration	Lifelong
Types	N/A
Causes	Genetic mutations, often in the CDKN2A gene
Risks	Family history of melanoma, fair skin, excessive sun exposure
Diagnosis	Skin examination, biopsy
Differential diagnosis	Common mole, melanoma, seborrheic keratosis
Prevention	Regular skin checks, sun protection
Treatment	Monitoring, surgical removal of suspicious moles
Medication	N/A
Prognosis	Variable, depends on early detection and management
Frequency	Rare, but more common in families with a history of melanoma
Deaths	N/A

Dysplastic nevus syndrome is a medical condition characterized by the presence of multiple atypical moles (dysplastic nevi) on the skin. These moles have irregular features under the microscope and may be larger than ordinary moles. People with dysplastic nevus syndrome have a higher risk of developing melanoma, a serious type of skin cancer.

Causes

The exact cause of dysplastic nevus syndrome is unknown. However, it is believed to be due to a combination of genetic and environmental factors. A family history of the condition or of melanoma increases the risk.

Symptoms

People with dysplastic nevus syndrome have multiple atypical moles on their skin. These moles may be larger than ordinary moles and have irregular features under the microscope. They may also change in size, shape, or color over time.

Diagnosis

Diagnosis of dysplastic nevus syndrome is based on the clinical appearance of the moles and a history of atypical moles in the patient or their family. A skin biopsy may be performed to examine the mole under the microscope and confirm the diagnosis.

Treatment

There is no cure for dysplastic nevus syndrome. However, regular skin examinations can help detect changes in the moles early and reduce the risk of developing melanoma. In some cases, atypical moles may be removed to prevent them from becoming cancerous.

Prognosis

With regular skin examinations and early detection of changes in the moles, the prognosis for people with dysplastic nevus syndrome is generally good. However, they have a higher risk of developing melanoma and should be monitored closely.

See also

• Melanoma
• Skin cancer
• Skin biopsy

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