Can B-ultrasound detect appendicitis?

Appendicitis is a common acute abdominal condition encountered in clinical practice. Surgical removal of the appendix is the standard treatment for appendicitis. Recognizing its typical symptoms facilitates timely diagnosis and intervention. So, can appendicitis be detected via B-mode ultrasound (B-ultrasound)? Let’s explore this further.

Can B-ultrasound detect appendicitis?

Yes, B-ultrasound can reliably detect appendicitis, and different types of appendicitis exhibit distinct features on B-ultrasound imaging.

For instance, in cases of acute simple appendicitis, B-ultrasound typically reveals mild enlargement of the appendix, with minimal fluid accumulation within the appendiceal lumen. Additionally, increased gas in adjacent bowel loops and intestinal lumens may be observed—often appearing as anechoic, tubular structures resembling portal vessels.

In acute suppurative appendicitis, B-ultrasound shows moderate, worm-like enlargement of the appendix, with marked luminal dilation and prominent hypoechoic (dark) areas within the lumen. Small amounts of surrounding exudative fluid may also be present, typically without well-defined hypoechoic regions. Furthermore, blood flow in the appendiceal wall and adjacent tissues is markedly increased.

In acute gangrenous appendicitis, B-ultrasound reveals disruption of the appendiceal wall continuity, with indistinct, irregular, and often stone-like margins. A substantial amount of anechoic exudate accumulates around the appendix, and both the appendix and surrounding tissues demonstrate absent Doppler flow signals.

We hope the above information is helpful to you.