Early Recognition of Proteus Syndrome

Area of Science:

• Dermatology
• Genetics
• Pediatrics

Background:

• Proteus syndrome is a rare mosaic disorder characterized by progressive, asymmetric overgrowth.
• It results from somatic activating mutations in the AKT1 gene.
• Cutaneous manifestations often precede significant skeletal overgrowth.

Observation:

• This study documents skin and musculoskeletal changes in a Proteus syndrome patient from birth to age two.
• Photographs highlight key dermatological signs such as cerebriform connective tissue nevi, epidermal nevi, vascular malformations, and adipose abnormalities.
• These features serve as crucial indicators for early diagnosis.

Findings:

• Early and recognizable dermatological signs are critical for diagnosing Proteus syndrome.
• The progression of skin and skeletal changes in the first two years of life is documented.
• The AKT1 gene mutation underlies the observed overgrowth and specific cutaneous features.

Implications:

• Dermatologists can play a key role in the early identification of Proteus syndrome.
• Prompt diagnosis facilitates timely management and intervention for patients.
• Recognizing specific cutaneous markers can significantly improve patient outcomes by enabling earlier treatment.