Papillary eccrine adenoma

Papillary Tubular Adenoma of the Skin

“…The histological appearances of papillary tubular adenomas described by various authors are similar to this case (1)(2)(3)(4). The giant cell reaction is secondary to raptured tubules.…”

“…Papillary tubular adenoma of the skin was first reported by Rulon and Helwig in 1977 when they described 14 cases (1), which they termed papillary eccrine adenoma on the basis of the light microscopic appearances of structures resembling dilated ducts with intraluminal papillations. Lesions with similar histological appearances have also been reported in the literature (2)(3)(4). I herein report on a similar lesion which I term papillary tubular adenoma, because, on the basis of its light microscopic appearance it is not possible to determine apocrine or eccrine differentiation.…”

Tubulopapillary Hidradenoma-like Tumour of the Mandible: A Case Report and Literature Review

“…TPH resembles PEA in many aspects. However, PEA rarely communicate with the surface epithelium and lacks decapitation secretion microscopically [13,14]. In contrast to apocrine adenocarcinoma, TPH lack cytologicatypia and possess a peripheral myoepithelial layer [5].…”