Home > E. Pathology by systems > Skin > eccrine syringofibroadenomae
eccrine syringofibroadenomae
Sunday 8 November 2020
eccrine syringofibroadenoma (of Mascaro), acrosyringeal adenomatosis
Eccrine poromatosis
Linear eccrine poroma
Acrosyringeal nevus of Weedon and Lewis
Nevus syringoadenomatosus papilliferum
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Definition : A rare benign eccrine proliferation with anastomosing cords in a fibrovascular stroma.
Synopsis
anastomoting strands of epithelial cells
anastomosing reticulated cords and strands of basaloid monomorphous cuboidal cells extending from the basal layer of epidermis into dermis
cells are slightly smaller than neighboring keratinocytes
loose fibrovascular stroma
cords have scattered ductal structures resembling eccrine ducts lined by CEA+ cells
+/- nests of clear cells
Differential diagnosis
acrosyringeal nevus
clear cell acanthoma
CBC : fibroepithelioma of Pinkus
poroma
porocarcinoma