EC Gynaecology

Background: Diffuse breast infiltration may mimic both benign granulomatous conditions (idiopathic granulomatous mastitis or breast tuberculosis) and malignant invasive carcinoma. Imaging overlap is significant, and presentation may exceptionally be bilateral.

Case: We present a woman with bilateral diffuse breast induration. Ultrasound showed bilateral parenchymal infiltration with ductal ectasia; MRI demonstrated bilateral cutaneous thickening and diffuse edema with ductal dilatation, and a right subcutaneous rim‑enhancing collection compatible with an abscess. Final histology confirmed invasive ductal carcinoma with clinical-radiologic consideration of bilateral involvement.

Conclusion: This case underscores the diagnostic pitfall of mastitis‑like presentations—including bilateral ones—where imaging alone is insufficient; biopsy is indispensable [1-9].

Keywords: Breast Infiltration; Granulomatous Mastitis; Breast Tuberculosis; Invasive Ductal Carcinoma; Diagnostic Pitfalls; MRI

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9. Le‑Petross HT., et al. “MRI Features of Inflammatory Breast Cancer”. American Roentgen Ray Society4 (2011): W623-W630.