sebaceous epithelioma; sebaceoma

Etiology

• may occur in Muir-Torre syndrome

Microscopic pathology

• irregularly shaped cell masses with more than one half of cells undifferentiated basaloid cells but with significant aggregates of sebaceous cells & transitional cells.
• nuclear atypia rare
• mitoses may be numerous

Clinical manifestations

• face or scalp most common

Differential diagnosis

• sebaceous adenoma
• sebaceous carcinoma
• basal cell carcinoma with sebaceous differentiation

More general terms

• sebaceous gland neoplasm