Background of study Steatocystoma multiplex (SM) and eruptive vellus hair cyst (EVHC), are both entities with similar clinical features, but with important histological differences. In the last few years, several authors have reported examples of both cysts with mixed histoiogical features, and have proposed the idea that the two conditions are related.Subjects We report here 3 cases, histological features of SM, EVHC. and the other presenting cysts with mixed histological findings.Conclusions The different histological findings in the cases reported support the idea that SM and EVHC are extremes of a spectrum

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