Spiradenocylindroma of skin: A hybrid tumor

Abstract

Spiradenocylindroma is a rare occurrence where tumor has histological features of both spiradenoma and cylindroma in single nodular lesion. Due to dual histomorphological features in a single lesion, it is considered as a hybrid tumor. We describe a case of spiradenocylindroma in a 70-year old female. Spiradenocylindroma presents a diagnostic challenge to the histopathologist because both tumors share some common features; however, the presence and absence of lymphocytes are important for differentiation.

Keywords

• Cylindroma
• histomorphology
• hybrid
• spiradenoma