Sex
Race
Frequency - International
Frequency - United States
Age
No reported increased incidence of sebaceous adenoma has occurred in any particular geographical location.
Sebaceous adenomas frequently appear on the face or scalp of middle-aged and older individuals, after age 50 years. The mean age at onset is 60 years.
Sebaceous adenomas affect men and women equally.
The exact incidence of sebaceous neoplasms is unknown. Prior to 1967, sebaceous neoplasms were regarded as rare solitary tumors, with only a few published reports of them. However, in 1967, Muir and his colleagues first described the association of multiple sebaceous tumors and carcinoma of the larynx and the intestine.
No reported predisposition is reported for any particular race.
