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Apocrine ductal carcinoma in situ (ACDIS) is a very rare breast carcinoma which is regarded as a variant of the ductal carcinoma in situ breast tumors. ACDIS tumors have microscopic histopathology features that are similar to pure apocrine carcinoma of the breast tumors but differ from them in that they are completely localized, i.e. have not invaded nearby tissues or metastasized to distant ...
Micrograph showing apocrine-type metaplasia of the breast with typical oncocytes. [2] H&E stain. Oncocytes (left of image), as seen in a renal oncocytoma. H&E stain. An oncocyte is an epithelial cell characterized by an excessive number of mitochondria, resulting in an abundant acidophilic, granular cytoplasm. Oncocytes can be benign or malignant.
Micrograph showing apocrine metaplasia of the breast with typical features [5] H&E stain. The exact mechanism of the condition is not fully understood, though it is known to be tied to hormone level fluctuation; the condition usually subsides after menopause and is closely related to the menstrual cycle.
Papillary urothelial neoplasm of low malignant potential; M8130/2 Papillary transitional cell carcinoma, ... M8573/3 Adenocarcinoma with apocrine metaplasia
Apocrine metaplasia. Pathology Outlines. Last author update: 28 May 2020; Author: Mikael Häggström, M.D. Author info - Reusing images - Conflicts of interest:
Micrograph showing apocrine metaplasia of the breast with typical features [3] H&E stain. Barrett's esophagus is an abnormal change in the cells of the lower esophagus, thought to be caused by damage from chronic stomach acid exposure. The following table lists some common tissues susceptible to metaplasia, and the stimuli that can cause the ...
Invasive apocrine carcinomas of the breast with an appreciable amount of apocrine gland-like tissue was termed apocrine breast tumors for decades when in 1988 d'Amore et al named a subset of these carcinomas in which >90% of its tissue consisted of apocrine gland-like tissue as pure invasive apocrine carcinoma. [6]
Papillary hidradenomas that develop outside of the anogenital region are termed ecctopic papillary hidradenomas or ectopic hidradenoma papilliferums. [ 5 ] Anogenital papillary hidradenomas are regarded as tumors that form in anogenital mammary–like glands (MLAGs); MLAGs are a type of apocrine gland .