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Familial cutaneous cylindromas: investigations in five generations of a family
A L Gerretsen1, F A Beemer, W Deenstra
1Department of Dermatology, University Hospital Utrecht, The Netherlands.
Background:
Multiple cutaneous cylindromas are probably inherited in an autosomal dominant way.
Objective:
Our purpose was to describe a large family with cutaneous cylindromas, trichoepitheliomas, and milia occurring in five generations and to elucidate further the mode of inheritance.
Methods:
We examined 39 family members and obtained information on 31 other members from reports of relatives.
Results:
The pedigree included 237 members, 118 male and 119 female, with 30 affected patients (11 male, 19 female). Between 33% and 100% of the children of affected family members had one or more of these skin lesions. Female-to-female, female-to-male, male-to-female, and male-to-male inheritance occurred.
Conclusion:
Multiple cutaneous cylindromas are inherited in an autosomal dominant way with variable clinical expression. Penetrance reaches 100% in adult life. This condition is associated with trichoepitheliomas and milia.