What causes Steatocystoma multiplex ?
What causes steatocystoma multiplex? Mutations in a gene called keratin 17 (KRT17) have been identified in some individuals with inherited steatocystoma multiplex. In these families the condition is inherited in an autosomal dominant fashion. In other cases the condition occurs sporadically. This may mean that it is due to a gene mutation that was not inherited, but occurred for the first time in the affected individual. A sporadic condition may also be non-genetic and occur by chance, in which case it is not likely to recur in a family.  In many sporadic cases of steatocystoma multiplex, mutations in the KRT17 gene have not been identified. Cases of steatocystoma multiplex have also been reported in association with pachyonychia congenita, acrokeratosis verruciformis, hypertrophic lichen planus, hypohidrosis, hidradenitis suppurativa, and natal teeth.