INFARCTED MYXOID FIBROADENOMA FOLLOWING FINE-NEEDLE ASPIRATION

Infarction of breast fibroadenomas is very rare and is frequently asso ciated with physiologic changes, such as pregnancy and lactation. We r eport a case of an infarcted fibroadenoma following fine-needle aspira tion. The patient presented with an asymptomatic breast mass, which wa s clinically difficult to evaluate. Excisional biopsy was performed 7 days after a nondiagnostic fine-needle aspiration of the mass. Microsc opically, the nodule showed features of a classic fibroadenoma of the intracanalicular type with myxoid or mucinous stromal changes, as well as extensive areas of acute infarction. This report provides another example of the changes that may be observed in biopsy specimens obtain ed after fine-needle aspiration of the breast.