Pseudomamma on the foot: An unusual presentation of supernumerary breast tissue

Conde, Délio Marques; Kashimoto, Eiji; Torresan, Renato Zocchio; Alvarenga, Marcelo

doi:10.5070/d339n411b8

Cited by 16 publications

(2 citation statements)

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“…Occasionally, when there is incomplete involution, ectopic breast tissue can occur anywhere along the embryological milk line (16,17). Ectopic breast tissue has a reported incidence of 1-6% amongst the general population, most commonly found in the axilla and rarely in the vulva (16,17,29), and rarely mammae erraticae have been reported in locations outside the milk line, including thigh (30), foot (31), back (32) and face (33). Ectopic breast tissue is hormonally responsive and can undergo benign and malignant transformations, similar to those found in normal breast tissue.…”

Section: Discussionmentioning

confidence: 99%

Fibroadenoma in vulval ectopic breast tissue in a patient with PTEN Hamartoma Tumour Syndrome

et al. 2021

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PTEN is a tumour suppressor gene involved in regulating cell division. Pathogenic germline variants in PTEN predispose to benign and malignant growths of numerous organs, including of the breast. In the following report, we describe the first documented case of a fibroadenoma developing in ectopic breast tissue of the vulva in a patient with a germline pathogenic variant in PTEN. This highlights the risk of proliferative hyperplasia developing in any breast tissue, including rare ectopic sites, particularly in patients with underlying germline variants in cancer susceptibility genes.

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Section: Discussionmentioning

confidence: 99%

Fibroadenoma in vulval ectopic breast tissue in a patient with PTEN Hamartoma Tumour Syndrome

et al. 2021

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“…Most often ectopic place of the gland tissue is axilla, probably as the center of big lymph nodes, and then vulva. Ectopic tissue can be found outside milk streaks, at the back, thighs, face, hips, upper part of the arms, shoulders and feet [3][4][5] .…”

Section: Introductionmentioning

confidence: 99%