Non-retroareolar male mucinous breast cancer without gynecomastia development in an elderly man : A case report

©The Author(s) 2023. Published by Baishideng Publishing Group Inc. All rights reserved..

BACKGROUND: Male breast cancer (MBC) is an extremely rare condition and accounts for less than 1% of all breast cancers, and malignant tumors occur in less than 1% of the affected men. Mucinous breast cancer is extremely rare and accounts for 2% of all invasive breast cancers. Generally, MBC is accompanied by a retroareolar mass.

CASE SUMMARY: Herein, we report a case of male mucinous breast carcinoma (MMBC) without gynecomastia development and with mass localization outside the common retroareolar region, wherein the mass was a painless nodule in the right breast of a 64-year-old man. We also discuss the clinical and pathological characteristics of this unusual tumor. The excised breast specimen showed pure mucinous carcinoma. The patient had strong expression of estrogen and progesterone receptors, a low Ki-67 proliferation index of the tumor cells, and negative pathological axillary lymph nodes. The patient underwent modified radical mastectomy and axillary lymph node dissection, followed by tamoxifen hormone therapy.

CONCLUSION: To the best of our knowledge, this is the first case report of MMBC in the non-retroareolar region of the nipple without gynecomastia development. Mucinous tumors are easily missed during diagnosis, and the incidence of axillary lymph node metastases of chest mucinous tumors has increased.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:11

Enthalten in:

World journal of clinical cases - 11(2023), 25 vom: 06. Sept., Seite 5954-5961

Sprache:

Englisch

Beteiligte Personen:

Sun, Qiang [VerfasserIn]
Liu, Xu-Yan [VerfasserIn]
Zhang, Qi [VerfasserIn]
Jiang, Hai [VerfasserIn]

Links:

Volltext

Themen:

Breast cancer
Case Reports
Case report
Male
Mucinous adenocarcinoma
Nipple

Anmerkungen:

Date Revised 21.09.2023

published: Print

Citation Status PubMed-not-MEDLINE

doi:

10.12998/wjcc.v11.i25.5954

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM362243034