A Rare Presentation of Fournier's Gangrene: Necrotizing Infection Traveling Through a Fistula From the Rectum to the Corpus Cavernosum.

A corpus cavernosum filled with air is a rare finding during imaging, and it should raise suspicion for a serious urologic injury or infection. We present the case of a patient with air in their corpus cavernosum seen on emergency computed tomography. He was diagnosed with Fournier's gangrene, secondary to an infectious spread through a fistula from the rectum to the corpus cavernosum. Radiologists and clinicians should consider rare presentations of necrotizing infections when encountering an air-filled corpus cavernosum on imaging.