• Term used to designate an eccrine poroma that is located entirely within the dermis, without an epidermal connection.

Clinical Features:

• Presents as a firm nodule, most commonly on the lower limbs, head or neck.

Histologic Features:

• Intradermal islands of basaloid cells, resembling those of eccrine poroma
• Duct formation may be present.
• Levels may reveal a connection to the epidermis, changing the diagnosis to eccrine poroma.

Cases associated with this book:

Dermal duct tumor
Author: Artur Zembowicz M.D. Ph.D.

Conference: Dr. Z's Consultations