Diagnostic laparoscopy as the definitive means of hernia detection?

On this topic. I just did a case today that I completely reduced the hernia sac through TAPP approach and there was large prepetitoneal cord lipoma that was not evident intra-abdominally. This is the prime example of something that could possibly be missed with diagnostic lap alone and not taking the peritoneal reflection down. There was no evidence of this on intra-abdominal exam.