Naevus comedonicus in homozygous twins

Area of Science:

• Dermatology
• Genetics
• Twin Studies

Background:

• Nevus comedonicus is a rare congenital skin condition characterized by comedone-like lesions.
• Familial occurrence of nevus comedonicus has been previously suggested but not extensively documented.

Observation:

• A case report detailing bilateral nevus comedonicus in a pair of twins from Singapore.
• Three additional family members presented with similar dermatological manifestations.
• The condition affected both males and females, with a higher prevalence in males.

Findings:

• The family pedigree indicates an autosomal dominant inheritance pattern for nevus comedonicus.
• The extensive disease presentation in the twins suggests possible homozygosity for the causative gene.

Implications:

• This case highlights the potential for genetic factors in nevus comedonicus.
• Further research into the genetic basis and inheritance patterns of nevus comedonicus is warranted.
• Understanding the genetic transmission can aid in genetic counseling for affected families.