Oxidized regenerated cellulose imitating pelvic abscess.

Oxidized regenerated cellulose is a topical hemostatic agent that is used commonly in abdominal and pelvic surgery. Although oxidized regenerated cellulose mimicking an abscess has been reported after different operations, little is known about its side effects after gynecologic surgery. Two women were diagnosed with postoperative abscess and intra-abdominal oxidized regenerated cellulose was identified as an abscess or as part of an abscess on computed tomography imaging. Both women recovered after treatment with antibiotics with and without drainage. Oxidized regenerated cellulose may be mistaken for an abscess or as part of an abscess on imaging studies. It is important to reveal information about oxidized regenerated cellulose use to the imaging department.