Solitary trichoepithelioma
Encyclopedia
A solitary trichoepithelioma is a cutaneous condition characterized by a firm dermal
papule
s or nodules most commonly occurring on the face.
Dermis
The dermis is a layer of skin between the epidermis and subcutaneous tissues, and is composed of two layers, the papillary and reticular dermis...
papule
Papule
A papule is a circumscribed, solid elevation of skin with no visible fluid, varying in size from a pinhead to 1 cm.With regard to the quote "...varying in size from a pinhead to 1cm," depending on which text is referenced, some authors state the cutoff between a papule and a plaque as 0.5cm,...
s or nodules most commonly occurring on the face.