What is the definitive diagnostic test for endometriosis?

What is the definitive diagnostic test for endometriosis?

• A. Transvaginal ultrasound
• B. MRI
• C. Laparoscopy with biopsy
• D. CA-125

Answer: (C)

The definitive way to diagnose endometriosis is laparoscopy with biopsy. This procedure lets the clinician directly view the peritoneal surfaces for endometriotic implants and obtain tissue to confirm the diagnosis histologically. Imaging tests like transvaginal ultrasound or MRI can reveal endometriomas or deep pelvic lesions and may raise suspicion, but they can miss small peritoneal implants and cannot confirm endometriosis with certainty. CA-125 is nonspecific and can be elevated in many conditions, so it’s not reliable for a definitive diagnosis. So, while imaging and labs can suggest endometriosis, laparoscopy with biopsy provides the concrete confirmation.

The definitive way to diagnose endometriosis is laparoscopy with biopsy. This procedure lets the clinician directly view the peritoneal surfaces for endometriotic implants and obtain tissue to confirm the diagnosis histologically. Imaging tests like transvaginal ultrasound or MRI can reveal endometriomas or deep pelvic lesions and may raise suspicion, but they can miss small peritoneal implants and cannot confirm endometriosis with certainty. CA-125 is nonspecific and can be elevated in many conditions, so it’s not reliable for a definitive diagnosis. So, while imaging and labs can suggest endometriosis, laparoscopy with biopsy provides the concrete confirmation.