Undetected Penetrating Bladder Injuries Presenting as a Spontaneously Expulsed Bullet during Voiding: A Rare Entity and Review of the Literature

There have been <10 cases reported in the literature of spontaneously expulsed bullets from the urethra, all of which were undetected injuries on initial presentation. Physicians should be aware of the potential for undetected urinary tract injuries in patients with penetrating missiles to the pelvis and understand the appropriate evaluation and management strategies for these injuries.