Granulomatous mastitis with erythema nodosum: A breast cancer mimicking entity

We present the case of a 42-year-old Hispanic patient who consulted with a left breast mass that showed clinical and imaging signs of breast cancer. During preprocedural examination before needle biopsy, the patient was found to have bilateral, purplish-brown skin lesions on her lower legs, suggesti...

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Bibliographic Details
Published in:	Radiology case reports Vol. 18; no. 11; pp. 3809 - 3814
Main Authors:	Pesce, Karina A., Caro Peralta, Karen L., Chico, Maria Jose, Wernicke, Alejandra, Binder, Fernando
Format:	Journal Article
Language:	English
Published:	Elsevier Inc 01-11-2023 Elsevier
Subjects:	Case Report Erythema nodosum Idiopathic granulomatous mastitis Mastitis Mastitis Case report Erythema nodosum Idiopathic granulomatous mastitis
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Summary:	We present the case of a 42-year-old Hispanic patient who consulted with a left breast mass that showed clinical and imaging signs of breast cancer. During preprocedural examination before needle biopsy, the patient was found to have bilateral, purplish-brown skin lesions on her lower legs, suggestive of erythema nodosum. This clinical finding raised the diagnostic suspicion of granulomatous mastitis, which was later confirmed by histopathology. Granulomatous mastitis is a rare, nonmalignant entity that should be considered in patients of childbearing age who present with a breast mass. The coexistence with erythema nodosum contributes to the clinical suspicion of granulomatous mastitis; the mechanism of this association and the optimal treatment approach remain unknown.
ISSN:	1930-0433 1930-0433
DOI:	10.1016/j.radcr.2023.08.016