Histomorphological and Immunohistochemical Reappraisal of Cutaneous Adnexal Tumours: A Hospital Based Study
Table 8
Salient histopathological features of sebaceous tumours.
Sebaceous carcinoma
(i) Irregular epithelial lobules with infiltrative growth in dermis (ii) Lesional cells, marked cytological atypia, and focal sebaceous differentiation
Sebaceous adenoma
(i) Tumour composed of sebaceous lobules of varying size and shape (ii) Two types of cells: basaloid cells and sebaceous cells (iii) Predominant component, sebaceous cells
Sebaceoma
Majority of the lesion showing undifferentiated basaloid cells with islands of sebaceous cells and occasional ducts