Global Distribution of Idiopathic Granulomatous Mastitis: A Scoping Review IGM Global Distribution

Sepehr Metanat (1), Yekta Soleimani Jobaneh (2), Maedeh Noori (3), Farhood Sadeghi (4), Abbas Mirzapour (5), Negar Mashoori (6), Sara Mossahebi (7), Ahmad Kaviani (8), Mojgan Karbakhsh (9)
(1) Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran; School of Medicine, Tehran University of Medical Sciences, Tehran, Iran, Iran, Islamic Republic of,
(2) University of Toronto, Toronto, Ontario, Canada, Canada,
(3) Young Researchers and Elite Club, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; , Iran, Islamic Republic of,
(4) Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran; School of Medicine, Tehran University of Medical Sciences, Tehran, Iran, Iran, Islamic Republic of,
(5) Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran; School of Medicine, Tehran University of Medical Sciences, Tehran, Iran, Iran, Islamic Republic of,
(6) Department of Surgery, Tehran University of Medical Sciences, Tehran, Iran, Iran, Islamic Republic of,
(7) Ferdous Hospital, Isfahan, Iran, Iran, Islamic Republic of,
(8) Department of Surgical Oncology, University of Montreal, Montrea, Canada Department of Surgery, Tehran University of Medical Sciences. Tehran, Iran, Iran, Islamic Republic of,
(9) Department of Community and Preventive Medicine, School of Medicine, Tehran University of Medical Sciences, Iran, Islamic Republic of

Abstract

Background: Idiopathic granulomatous mastitis (IGM) is a challenging exclusion diagnosis for breast lesions, manifested as benign, chronic inflammation of the breast tissue. Although some evidence suggest that IGM cases are not uniformly distributed worldwide, few investigations have specifically addressed this topic. This study aims to examine the distribution of IGM cases among countries and races/ethnicities based on reported cases.
Methods: A review of studies with a report of at least one IGM patient published from 2011 to 2020 inclusive was conducted. The search was performed in MEDLINE, and citations were filtered in two stages by title/abstract and full text. Those cases with a positive growth of pathogens, male granulomatous mastitis and review articles were excluded.
Results: Among 365 retrieved publications, 218 were finally included based on the inclusion and exclusion criteria, comprising 7161 patients from 34 different countries. Turkey, the United States, and China were the countries where the most publications (including case reports) originated. Considering the number of patients within papers, Turkey, Iran, and China were the pioneers.
Conclusion: Based on the published literature, some populations seem to be more prone to IGM. Further investigations may reveal the genetic and environmental factors associated with this disease in different geographic areas.

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Authors

Sepehr Metanat
Yekta Soleimani Jobaneh
Maedeh Noori
Farhood Sadeghi
f.sadeghi1378@gmail.com (Primary Contact)
Abbas Mirzapour
Negar Mashoori
Sara Mossahebi
Ahmad Kaviani
Mojgan Karbakhsh
Author Biographies

Sepehr Metanat, Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran; School of Medicine, Tehran University of Medical Sciences, Tehran, Iran

M.D. student 

Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran; School of Medicine, Tehran University of Medical Sciences, Tehran, Iran

Yekta Soleimani Jobaneh, University of Toronto, Toronto, Ontario, Canada

HBsc - University of Toronto, Toronto, Ontario, Canada.

Maedeh Noori, Young Researchers and Elite Club, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran;

M.D. - Young Researchers and Elite Club, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.

Abbas Mirzapour, Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran; School of Medicine, Tehran University of Medical Sciences, Tehran, Iran

M.D. student - Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran; School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.

Negar Mashoori, Department of Surgery, Tehran University of Medical Sciences, Tehran, Iran

M.D. - Department of Surgery, Tehran University of Medical Sciences, Tehran, Iran.

Sara Mossahebi, Ferdous Hospital, Isfahan, Iran

M.D. - Ferdous Hospital, Isfahan, Iran.

Mojgan Karbakhsh, Department of Community and Preventive Medicine, School of Medicine, Tehran University of Medical Sciences

M.D., M.P.H. - Department of Community and Preventive Medicine, School of Medicine, PoorSina St, Qods St, Enqelab Ave, Tehran University of Medical Sciences, Tehran, Iran - Tel/Fax: +98 21 88962357.

1.
Metanat S, Soleimani Jobaneh Y, Noori M, Sadeghi F, Mirzapour A, Mashoori N, Mossahebi S, Kaviani A, Karbakhsh M. Global Distribution of Idiopathic Granulomatous Mastitis: A Scoping Review: IGM Global Distribution. Arch Breast Cancer [Internet]. 2022 Apr. 17 [cited 2025 May 3];9(3-SI):261-7. Available from: https://archbreastcancer.com/index.php/abc/article/view/563

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