Seven case reports on the prevention of hemorrhage after percutaneous computed tomography-guided core-needle biopsy of the spleen.

In this study, we reported seven patients who underwent diagnostic evaluation through core-needle biopsy (CNB) of the spleen. After biopsy, gelatin sponge particles mixed with hemocoagulase were gradually injected using a coaxial introducer needle. One patient received microwave ablation following the CNB. All patients were followed up by computed tomography to rule out bleeding or accidental injuries both immediately after the biopsy and within 24 h. Adequate specimens for pathologic examination were obtained from all patients, and the biopsy technical success rate was 100%. No serious complications were observed in our case series. There was no evidence of postbiopsy bleeding. Therefore, injection of gelatin sponge particles mixed with hemocoagulase or microwave ablation may be effective options to prevent hemorrhage after splenic core-needle biopsies.