Mastitis granulomatosa idiopática: 10 Años de experiencia en el Centro de Imagenología del Hospital Clínico de la Universidad de Chile

Abstract

Idiopathic granulomatous mastitis is an infrequent inflammatory disease of the breast, with etiology still unknown. Clinical presentation and images can simulate both infectious and neoplastic disease so it's important to suspect it to make a proper and timely diagnosis. Most reports in the literature on this topic correspond to small case series. This study is a retrospective analysis of the clinical, histopathological and imaging features and its management of 36 cases diagnosed by core biopsy under ultrasound at the Clinical Hospital of the University of Chile between 2004 and 2014. In this report, as in the literature, clinical and imaging findings in idiopathic granulomatous mastitis overlap with malignant and infectious diseases. Although we observed no pathognomonic findings, there are signs that make you suspect this condition. In our study we found that the most common clinical presentation was a palpable mass or nodule, followed by cutaneous fistula. Radiologically the most common mammographic finding was lobulated or irregular area and in ultrasound the most frecuent is the distorted breast parenchyma with posterior acoustic shadowing. Histological, pathophysiological and management aspects of this pathology was also reviewed.