Breast pseudoaneurysm following biopsy of a benign lesion with ultrasound-guided obliteration with first thrombin and then glubran: a Case Report

Background: Breast pseudoaneurysms represent an infrequent complication of core needle biopsies. Given their fragility and tendency to grow, treatment strategies usually encompass ultrasound-guided compression and, in case of failure, minimally invasive procedures like embolization. To date, no experience in the literature is reported about pseudoaneurysms in non-malignant breasts. Case presentation: We hereby describe the case of a 71-year-old woman with a breast pseudoaneurysm following a core-needle biopsy of a suspicious lesion that has proved to be of a benign nature. After unsuccessful sonographic-guided compression, ultrasound-guided thrombin injection is performed, with fast and nearly complete obliteration of the sac but re-perfusion at three months follow-up Color-Doppler ultrasound examination; thus, embolization with Glubran is performed, with no recurrence. Conclusions: Treatment of pseudoaneurysms in a non-neoplastic breast (where coils and surgery are not advisable) should involve minimally invasive techniques, such as thrombin or/and Glubran.