Associated syndromes<unk> s can be found in association with other symptoms as part of a syndrome. Hailey–Hailey disease (also known as familial benign chronic pemphigus) is a blistering disease that can also include<unk> s. Several systemic syndromes have also been associated with<unk>  including diabetes mellitus, Down syndrome, Brooke-Spiegler syndrome, and Nicolau–Balus syndrome. Specifically, diabetes mellitus is strongly associated with clear cell<unk>  consisting of nests of clear cells containing glycogen. A phosphorylase deficiency, resulting from elevated glucose levels seen in diabetes, is thought to lead to an accumulation of glycogen in the skin and within the clear cells. The incidence of<unk> s has been reported in up to 40% of people with Down syndrome, and can be associated with a condition calcinosis cutis, which requires prompt medical attention. Brooke-Spiegler syndrome is a rare autosomal-dominant syndrome with cutaneous manifestations including<unk> s and trichoepitheliomas. Nicolau-Balus syndrome is a rare autosomal-dominant disorder consisting of atrophoderma vermiculata and<unk> s.
Syringoma
Thecoma
Spiradenoma
Pilomatricoma
Cylindroma
Apudoma
Hamartoma
Ameboma