Figure 3: (a) The cephalic papule represented wide bundles of striated muscle covered by stratified squamous epithelium with surface parakeratosis. The arrow shows the transition towards normal skin displaying adnexal structures at the cephalic end of the specimen. The sign “*” marks the area shown in higher magnification in (b) ( , hematoxylin-eosin stain). (b) shows thin bundles of striated muscle extending superficially underneath the parakeratotic squamous epithelium covering the papule ( 10, hematoxylin-eosin stain). (c) shows the striated muscle bundles at the edge of the lesion to extend towards the adjacent normal skin and to surround sweat gland ducts and a hair follicle ( 10, hematoxylin-eosin stain).