sebaceous adenoma sebaceous adenoma a sebaceous adenoma, a type of adenoma, a cutaneous condition characterized by a slow-growing tumor usually presenting as a pink, flesh-coloured, or yellow papule or nodule.: 662 sebaceous adenomamicrograph of a sebaceous adenoma. h&e stain.specialtydermatology significance sebaceous adenomas, in isolation, are not significant; however, they may be associated with muir-torre syndrome, a genetic condition that predisposes individuals to cancer. it is also linked to hereditary nonpolyposis colorectal cancer (lynch syndrome). it is not the same as "adenoma sebaceum" by f. balzer and p.e. ménétrier (1885). the term "adenoma sebaceum" is a misnomer for facial angiofibromas associated with tuberous sclerosis complex.