Eccrine Mixed tumors are rare. They present as slow growth nodules They generally occur on the head and neck.
Histology eccrine mix tumor
In the eccrine mixed tumor, the sections show small unbranched ducts placed in a fibromucous or chondroid matrix (Figures 1, 2). The tumor is fine circumscribed (figure 2) and based on the dermis or subcutis. The ducts are lined with soft cells that very strongly resemble the syringoma (Figure 3). Unusual described features include cribriform glands, bone metaplasiaand erase cellular changes.
Mixed eccrine tumor pathology
Figure 1
Figure 2
figure 3
Special studies for mixed eccrine tumor
Generally none is needed.
Differential diagnosis eccrine mixed tumor
Syringoma: these are not established in a fibromucinous or chronodic stroma and generally occupy the superficial dermis
Apocrine mixed tumor: Consists of larger ducts and glands that can branch and mix with mature cartilage