Destructive domino: Subcutaneous self-implanted penile foreign body implicated in rule-out penile fracture

41-year-old male presented with significant penile swelling following sexual intercourse. Two years earlier while incarcerated, the patient self-inserted a 1.5 cm subcutaneous penile foreign body (FB) made from a domino piece. An original concern for penile fracture was successfully ruled out by penile ultrasound, and computed tomography ruled out deep infection. Bloodwork otherwise revealed leukocytosis, and the patient was admitted for intravenous antibiotics and observation. Penile cellulitis and hematoma clinically improved, and the FB did not require removal. At 18 month follow up, the patient maintains normal urological and sexual function.