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SAGE Open Med Case Rep. 2019 Apr 9;7:2050313X19841154. doi: 10.1177/2050313X19841154. eCollection 2019.

Granular cell tumour of the breast: A rare presentation of a breast mass in an elderly female with a subsequent breast cancer diagnosis.

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Department of General and Specialized Surgery, The Hashemite University, Zarqa, Jordan.
Pathology Unit, S.Orsola-Malpighi Hospital, Bologna, Italy.
Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy.
Department of the Health of Woman, Child and Urological Diseases, S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy.


A 74-year-old female patient presented with a hard breast mass and dimpling with a clinical suspicion of a carcinoma. Histological evaluation revealed a granular cell tumour. Granular cell tumour is a rare neoplasm, mostly benign in origin that may arise in every body site, 5%-15% of cases occur in the breast. It is strongly suggested that granular cell tumours origin is Schwann cells. Clinically, granular cell tumours presentation may mimic mammary carcinoma and their similar features on mammography and ultrasound make it difficult to differentiate between them.


Granular cell tumour; breast cancer; rare tumour

Conflict of interest statement

Declaration of conflicting interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship and/or publication of this article.

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