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J Breast Cancer. 2007 Dec;10(4):278-281. English. Case Report. https://doi.org/10.4048/jbc.2007.10.4.278
Hong YO , Kang J , Gong GY , Suh JH , Kim YM , Choi HJ , Jeong AK , Cha HJ .
Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
Department of Pathology, University of Ulsan College of Medicine, Ulsan University Hospital, Ulsan, Korea. heej0124@medimail.co.kr
Department of Radiology, University of Ulsan College of Medicine, Ulsan University Hospital, Ulsan, Korea.
Abstract

We describe here a case of localized polyarteritis nodosa that involved the unilateral breast in a 69-yr-old woman. She presented with a tender breast mass and had suffered for two months. On physical examination, an ill-defined 2 cm sized, firm mass was palpated. Ultrasonographic examination revealed a mass like lesion that contained microcalcifications. The mass was excised because of the suspicion of carcinoma. The histologic findings were vasculitis involving medium and small sized-arteries that showed marked neutrophilic and lymphocytic infiltrations with intimal fibroplasias and fragmentation of the internal elastic lamina. The patient progressed well after surgical excision. The discussion includes the importance of differential diagnosis between localized polyarteritis nodosa and other vasculitis, and review of previously reported cases of vasculitis of the breast. Only 13 cases of polyarteritis nodosa of the breast have been reported and this is the first case of polyarteritis nodosa with mammary duct ectasia.

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