Definition
An infarct is a coagulative necrosis of (breast-) tissue, caused by ischemia. This is mostly not a primary event in breast tissue but rather a secondary one, typically occurring after an invasive procedure or within a breast lesion such as a fibroadenoma, papilloma, or large neoplasm. In rare events, it can occur during late pregnancy or lactation.
Clinical Features
Incidence: Primary breast infarction is rare. Only a few case reports exist about breast infarction during the third trimester of pregnancy or lactation (Han et al. 2015; Hasson and Pope 1961).
Secondary breast infarction sometimes occurs as a complication following core needle biopsy, fine needle aspiration biopsy (FNAB), or a surgical procedure by altering the blood vessels of a breast lesion, which then undergoes infarction.
Age: Wide age distribution depending on underlying lesion. Primary infarction is more typical in pregnant women.
Sex: Only females, no reported male case.
Site: No site preference.
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References and Further Reading
Flint, A., & Oberman, H. A. (1984). Infarction and squamous metaplasia of intraductal papilloma: A benign breast lesion that may simulate carcinoma. Human Pathology, 15, 764–767.
Han, B., Zhang, H., Jiang, P., Zheng, C., Bi, L., Lu, L. U., & Fan, Z. (2015). Breast infarction during pregnancy and lactation: A case report. Experimental and Therapeutic Medicine, 10, 1888–1892.
Hasson, J., & Pope, C. H. (1961). Mammary infarcts associated with pregnancy presenting as breast tumors. Surgery, 49, 313–316.
Isenberg, J. S., Tu, Q., & Rainey, W. (1996). Mammary gangrene associated with warfarin ingestion. Annals of Plastic Surgery, 37, 553–555.
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Regitnig, P. (2018). Infarct of Breast Tissue. In: van Krieken, J. (eds) Encyclopedia of Pathology. Encyclopedia of Pathology. Springer, Cham. https://doi.org/10.1007/978-3-319-28845-1_4755-1
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DOI: https://doi.org/10.1007/978-3-319-28845-1_4755-1
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