Hidradenoma papilliferum pathology
Figure 1
Keywords: Hidradenoma papilliferum, Histopathology-image, Pathology
Histology of hidradenoma papilliferum
Hidradenoma papilliferum is a well-circumscribed dermal nodule, usually without connection to the overlying epidermis (figure 1). Tubules and broad, elongated fronds form an arborizing pattern and are lined with a double-layered epithelium (figures 2, 3). The inner layer is comprised of cuboidal myoepithelial cells and the outer is tall columnar apocrine cells with a pale eosinophilic cytoplasm, which may demonstrate decapitation secretion. Larger fronds may have a fibrous core. Fibrous tissue surrounding the tumour may be compressed to form a pseudocapsule.
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Source: dermnetnz.org