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Supernumerary nipple. A histologic study

A H Mehregan

Journal of Cutaneous Pathology

|April 1, 1981

Summary

This summary is machine-generated.

Supernumerary nipples (SNN) are rare developmental anomalies. Histologic examination reveals SNNs possess typical nipple structures, including skin, hair follicles, and mammary glands.

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Area of Science:

Dermatology
Developmental Biology
Histopathology

Background:

Supernumerary nipple (SNN) is a congenital anomaly along embryonic milk lines.
It most commonly affects the anterior trunk.
Understanding its histological features is crucial for diagnosis.

Purpose of the Study:

To histologically characterize supernumerary nipples.
To determine the incidence of SNN in a large dermatopathology cohort.
To review the literature on SNN characteristics.

Main Methods:

Retrospective analysis of 51 SNN cases from 360,000 skin biopsy specimens.
Histopathological examination of SNNs.
Literature review on SNN incidence and features.

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Main Results:

Supernumerary nipples were identified in 51 out of 360,000 specimens.
Histology confirmed the presence of epidermal thickening, pilosebaceous units, smooth muscle, and mammary gland tissue.
These findings are consistent with normal nipple anatomy.

Conclusions:

Supernumerary nipples exhibit complete histological differentiation.
The study provides data on the incidence of SNN in a large population.
Histopathological analysis confirms SNN as a variant of normal nipple development.