Spectrum of sebaceous differentiation. a. A normal sebaceous lobule. b. A sebaceous adenoma showing disorderly maturation of sebocytes. c. Sebaceoma or variant of sebaceous adenoma characterized by a high proportion of basaloid cells. d. Moderately differentiated sebaceous carcinoma consisting of cells with numerous lipid spaces. e. Another example of a moderately differentiated sebaceous carcinoma. f. Poorly differentiated sebaceous carcinoma composed of cells with large basophilic nuclei with little cytoplasm.