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[Self-induced cutaneous lesions in Prader-Willi syndrome]
P Plantin1, P Milochau, L Broussine
1Service de Dermatologie, Hôpital Laënnec, Quimper.
Annales De Dermatologie Et De Venereologie
|January 1, 1997
Summary
Prader-Labhart-Willi syndrome, a genetic obesity disorder, often involves skin-picking behavior. Early-onset obesity combined with skin picking can be a key diagnostic sign for this condition.
Area of Science:
- Genetics
- Pediatrics
- Dermatology
Background:
- Prader-Labhart-Willi syndrome (PWS) is the most common genetic cause of human obesity, affecting 1 in 10,000 to 25,000 live births.
- Skin-picking is a frequently reported symptom in individuals with PWS.
Observation:
- Two children diagnosed with PWS exhibited self-induced superficial ulcers on their limbs.
- These skin-picking behaviors were associated with behavioral issues, including temper tantrums and violence.
Findings:
- Skin-picking occurs in the majority of PWS patients and is considered a minor diagnostic criterion.
- Hypopigmentation is common in PWS patients.
- Differences in hair color, sun sensitivity, and complexion were noted between PWS patients with chromosome 15 deletions and those with normal chromosomes.
Implications:
- The combination of early-onset obesity (before age 6) and skin picking serves as a significant indicator for diagnosing Prader-Labhart-Willi syndrome.
- Recognizing skin-picking as a diagnostic sign can aid in earlier identification and management of PWS.
- Further research into the genetic and behavioral aspects of PWS is warranted.