CD34 and cutaneous fibrous histiocytoma: G-H-I (Case #3): Histological and immunohistochemical particularities of dermatofibroma with aberrant expression of CD34 protein, diagnosed in a 57-year-old female who presented with a nodule on the skin of the shoulder. Histologically, there is a small non-encapsulated, dermally centered, fairly cellular spindle cell lesion with cells arranged in a vague fascicular pattern.