In suspected endometriosis, which noninvasive test is the noninvasive test of choice?

In suspected endometriosis, which noninvasive test is the noninvasive test of choice?

• A. Laparoscopy with histology
• B. Transvaginal ultrasonography
• C. MRI
• D. CT scan

Answer: (B)

Imaging to identify suspected endometriosis should start with a noninvasive test that can reliably detect common disease and guide management. Transvaginal ultrasonography is the test of choice because it is widely available, inexpensive, and highly effective when performed by an experienced sonographer. It can identify ovarian endometriomas and assess for deeper pelvic involvement in the cul-de-sacs and uterosacral ligaments, helping shape treatment decisions without surgery. MRI has a role in complex or deep infiltrating cases and for surgical planning, but it’s less practical as the first-line test due to cost and availability. Laparoscopy with histology remains the definitive diagnostic procedure but is invasive and reserved for cases where noninvasive imaging and clinical assessment do not provide a clear plan. CT is not ideal for detecting most pelvic endometriosis because of limited sensitivity.

Imaging to identify suspected endometriosis should start with a noninvasive test that can reliably detect common disease and guide management. Transvaginal ultrasonography is the test of choice because it is widely available, inexpensive, and highly effective when performed by an experienced sonographer. It can identify ovarian endometriomas and assess for deeper pelvic involvement in the cul-de-sacs and uterosacral ligaments, helping shape treatment decisions without surgery. MRI has a role in complex or deep infiltrating cases and for surgical planning, but it’s less practical as the first-line test due to cost and availability. Laparoscopy with histology remains the definitive diagnostic procedure but is invasive and reserved for cases where noninvasive imaging and clinical assessment do not provide a clear plan. CT is not ideal for detecting most pelvic endometriosis because of limited sensitivity.