Granulomatous Mastitis: A Clinical and Diagnostic Dilemma

Objective: Granulomatous mastitis (GM) is a challenging inflammatory disorder of the breast. In this study we aimed to present the detailed clinical and morphological features of GM cases, diagnostic clues for specific and idiopathic etiologies, the difficulties in evaluating trucut biopsies, and th...

Full description

Bibliographic Details
Main Authors: Emel Ebru PALA, Sumeyye EKMEKCI, Melis KILIC, Ayberk DURSUN, Gul COLAKOGLU, Cem KARAALI, Mumin EMIROGLU, Mustafa EMIROGLU
Format: Article
Language:English
Published: Federation of Turkish Pathology Societies 2022-01-01
Series:Türk Patoloji Dergisi
Subjects:
Online Access: http://www.turkjpath.org/pdf.php3?id=1990
_version_ 1797919012793876480
author Emel Ebru PALA
Sumeyye EKMEKCI
Melis KILIC
Ayberk DURSUN
Gul COLAKOGLU
Cem KARAALI
Mumin EMIROGLU
Mustafa EMIROGLU
author_facet Emel Ebru PALA
Sumeyye EKMEKCI
Melis KILIC
Ayberk DURSUN
Gul COLAKOGLU
Cem KARAALI
Mumin EMIROGLU
Mustafa EMIROGLU
author_sort Emel Ebru PALA
collection DOAJ
description Objective: Granulomatous mastitis (GM) is a challenging inflammatory disorder of the breast. In this study we aimed to present the detailed clinical and morphological features of GM cases, diagnostic clues for specific and idiopathic etiologies, the difficulties in evaluating trucut biopsies, and the results of different therapeutic approaches. Material and Method: We retrospectively analysed the clinical, radiological and morphological features of 114 GM cases diagnosed with fine needle aspiration, and trucut, incisional, and excisional biopsy. Results: The mean age was 35.8. Only eight cases were older than 45 years. Bilateral involvement was observed in 4 (3.5%) cases. The most common clinical symptoms were breast mass/abscesses, tenderness, and skin changes. Microbiological culture was positive in 4 cases for gram-positive bacteria. Only 3 cases showed a positive tuberculin/PCR test for tuberculosis. The major USG finding was a hypoechoic well-defined or ill-defined mass/abscess; MRI finding was heterogeneous non-mass contrast enhancement. Cases diagnosed with cytology (35 cases) did not have breast malignancy either in their history or clinical follow up period. Fine needle aspiration cytology materials revealed epitheloid granulomas mixed with neutrophils, lymphocytes accompanied by giant cells, and suppurative necrosis. Histopathological reevaluation of 65 trucut/incisional/ excisional biopsies revealed granuloma formation in 65 (100%), Langhans type giant cells in 59 (90.7%), microabscess formation in 41 (63%), caseous necrosis in 1 (1.5%), neutrophilic cysts in 30 (46.1%), eosinophilic infiltration in 48 (73.8%), interlobular inflammation in 14 (21.5%), fat necrosis in 5 (7.6%), ductal ectasia in 6 (9.2%), and lactational changes in 4 (6.1%) cases. Granulomas were lobulocentric in 58 cases, foreign body type/fat necrosis-related in 6 case, and periductular in 1 case. Cystic neutrophilic granulomatous mastitis was observed in one case. We also evaluated the histochemical stains of these 65 biopsies. Only one sample was positive for acido-resistant bacilli (ARB) by the EZN method and one sample was positive for gram-positive bacilli by gram stain. Conclusion: Small, superficial trucut biopsies may cause difficulties in determining the etiology and differential diagnosis of granulomatous mastitis. For optimal management and timing the appropriate therapy, the ideal biopsy procedure, special stains, and a multidisciplinary team consisting of the surgeon, pathologist, and radiologist are the most important issues.
first_indexed 2024-04-10T13:39:51Z
format Article
id doaj.art-2537b90d651f420e862e56fb06b9a218
institution Directory Open Access Journal
issn 1018-5615
1309-5730
language English
last_indexed 2024-04-10T13:39:51Z
publishDate 2022-01-01
publisher Federation of Turkish Pathology Societies
record_format Article
series Türk Patoloji Dergisi
spelling doaj.art-2537b90d651f420e862e56fb06b9a2182023-02-15T16:11:14ZengFederation of Turkish Pathology SocietiesTürk Patoloji Dergisi1018-56151309-57302022-01-0138104004510.5146/tjpath.2021.01554Granulomatous Mastitis: A Clinical and Diagnostic DilemmaEmel Ebru PALASumeyye EKMEKCIMelis KILICAyberk DURSUNGul COLAKOGLUCem KARAALIMumin EMIROGLUMustafa EMIROGLUObjective: Granulomatous mastitis (GM) is a challenging inflammatory disorder of the breast. In this study we aimed to present the detailed clinical and morphological features of GM cases, diagnostic clues for specific and idiopathic etiologies, the difficulties in evaluating trucut biopsies, and the results of different therapeutic approaches. Material and Method: We retrospectively analysed the clinical, radiological and morphological features of 114 GM cases diagnosed with fine needle aspiration, and trucut, incisional, and excisional biopsy. Results: The mean age was 35.8. Only eight cases were older than 45 years. Bilateral involvement was observed in 4 (3.5%) cases. The most common clinical symptoms were breast mass/abscesses, tenderness, and skin changes. Microbiological culture was positive in 4 cases for gram-positive bacteria. Only 3 cases showed a positive tuberculin/PCR test for tuberculosis. The major USG finding was a hypoechoic well-defined or ill-defined mass/abscess; MRI finding was heterogeneous non-mass contrast enhancement. Cases diagnosed with cytology (35 cases) did not have breast malignancy either in their history or clinical follow up period. Fine needle aspiration cytology materials revealed epitheloid granulomas mixed with neutrophils, lymphocytes accompanied by giant cells, and suppurative necrosis. Histopathological reevaluation of 65 trucut/incisional/ excisional biopsies revealed granuloma formation in 65 (100%), Langhans type giant cells in 59 (90.7%), microabscess formation in 41 (63%), caseous necrosis in 1 (1.5%), neutrophilic cysts in 30 (46.1%), eosinophilic infiltration in 48 (73.8%), interlobular inflammation in 14 (21.5%), fat necrosis in 5 (7.6%), ductal ectasia in 6 (9.2%), and lactational changes in 4 (6.1%) cases. Granulomas were lobulocentric in 58 cases, foreign body type/fat necrosis-related in 6 case, and periductular in 1 case. Cystic neutrophilic granulomatous mastitis was observed in one case. We also evaluated the histochemical stains of these 65 biopsies. Only one sample was positive for acido-resistant bacilli (ARB) by the EZN method and one sample was positive for gram-positive bacilli by gram stain. Conclusion: Small, superficial trucut biopsies may cause difficulties in determining the etiology and differential diagnosis of granulomatous mastitis. For optimal management and timing the appropriate therapy, the ideal biopsy procedure, special stains, and a multidisciplinary team consisting of the surgeon, pathologist, and radiologist are the most important issues. http://www.turkjpath.org/pdf.php3?id=1990 breastgranulomatous mastitisidiopathic
spellingShingle Emel Ebru PALA
Sumeyye EKMEKCI
Melis KILIC
Ayberk DURSUN
Gul COLAKOGLU
Cem KARAALI
Mumin EMIROGLU
Mustafa EMIROGLU
Granulomatous Mastitis: A Clinical and Diagnostic Dilemma
Türk Patoloji Dergisi
breast
granulomatous mastitis
idiopathic
title Granulomatous Mastitis: A Clinical and Diagnostic Dilemma
title_full Granulomatous Mastitis: A Clinical and Diagnostic Dilemma
title_fullStr Granulomatous Mastitis: A Clinical and Diagnostic Dilemma
title_full_unstemmed Granulomatous Mastitis: A Clinical and Diagnostic Dilemma
title_short Granulomatous Mastitis: A Clinical and Diagnostic Dilemma
title_sort granulomatous mastitis a clinical and diagnostic dilemma
topic breast
granulomatous mastitis
idiopathic
url http://www.turkjpath.org/pdf.php3?id=1990
work_keys_str_mv AT emelebrupala granulomatousmastitisaclinicalanddiagnosticdilemma
AT sumeyyeekmekci granulomatousmastitisaclinicalanddiagnosticdilemma
AT meliskilic granulomatousmastitisaclinicalanddiagnosticdilemma
AT ayberkdursun granulomatousmastitisaclinicalanddiagnosticdilemma
AT gulcolakoglu granulomatousmastitisaclinicalanddiagnosticdilemma
AT cemkaraali granulomatousmastitisaclinicalanddiagnosticdilemma
AT muminemiroglu granulomatousmastitisaclinicalanddiagnosticdilemma
AT mustafaemiroglu granulomatousmastitisaclinicalanddiagnosticdilemma