A histopathological hybrid cyst with overlapping features of steatocystoma multiplex and eruptive vellus hair cyst

Steatocystoma multiplex (SM) and eruptive vellus hair cysts (EVHC) are relatively rare, benign tumours of the pilosebaceous unit. SM and EVHC are distinct entities with comparable clinical characteristics but significant histological distinctions. We report a case of a young male patient in his 20s who presented with multiple, asymptomatic raised skin lesions over the front and back of the trunk. A provisional diagnosis of SM was made clinically, but histopathology revealed features of both SM and EVHC, confirming the dual nature of the lesions.