Document Type: Research Articles
Department of General Surgery and Urology, Faculty of Medicine, Jordan University of Science and Technology, Jordan.
Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Jordan.
Objectives: There is no consensus regarding the surgical or immunosuppressive treatment of idiopathic
granulomatous mastitis (IGM). This study aimed to introduce a clinical classification system for IGM that might facilitate
its treatment and predict recurrence. Methods: We analyzed the management of 68 patients with IGM at (Princess Basma
Teaching Hospital and King Abdulla University Hospital (1994-2016) to find out if distinct patterns of presentation
exist according to the following parameters: presence of a painful or painless breast mass, local inflammation, abscess
formation, communication to the skin, and extra-mammary manifestation. Results: We identified four distinct patterns of
IGM: A: (13.23 %) A hard, painless breast mass. B: (52.94 %) A hard, painful breast mass with gross inflammation.
C: (26.47 %) A breast abscess-like presentation. D: (7. 35 %) A subacute presentation with ulceration, sinus, or fistula
formation. Erythema nodosum might complicate any of these patterns. Wide local excision in pattern A was curative
with zero recurrence rate. The recurrence rates in patterns B and C were 22.20 % and 50.00 %. Patterns B, C, and
D were treated by a combination of surgery and prednisolone. In keeping with this, recent literature is in favor of
a wider use of immunosuppression especially in the presence of pus and extra-mammary findings. Conclusion: IGM
could be classified into 4 distinct patterns according to the presenting signs and symptoms. These patterns correlated
with treatment, recurrence rate, and the gross operative findings. This is the first step toward a classification for IGM.
Multicenter and Meta-analysis studies are essential for a comprehensive prognostic classification. Treatment of IGM
in any institution should be the responsibility of a multidisciplinary team.