A 27-year-old man went to the hospital with three days of worsening pain in the lower right side of his abdomen, along with nausea, vomiting, and loss of appetite. Everything pointed to appendicitis, one of the most common reasons for emergency abdominal surgery.
When surgeons opened his abdomen, his appendix was normal. Instead, they found a giant mass measuring about 11 by 13 by 12 centimeters, twisted 540 degrees on its cord. It was his right testicle, which had never descended into the scrotum and had become cancerous.
