Frequency - International
Race
Age
Frequency - United States
Sex
Cylindromas are uncommon. The exact incidence is not known. They continue to be reported regularly at dermatology conferences, in particular when linked to BSS.
The incidence of cylindroma is more common in females than in males. Female-to-male ratios of 6:1 and 9:1 have been reported.
No racial disparity is reported for cylindromas.
Solitary cylindromas are lesions that affect middle-aged and elderly persons. Multiple, inherited cylindromas usually begin in early adulthood and increase in size and number throughout life.
The exact international incidence of cylindromas is not known. A case of Brooke-Spiegler syndrome that included cylindroma was reported in China in 2013.
