SonoStudy: Appendicitis diagnosed by TransVaginal Ultrasound #FOAMed #FOAMus

In a publication in WestJEM by Bramante, Raio and team, they discuss two cases of appendicitis found on trans-vaginal ultrasound. Now, this is something that I have been told can happen, but there are few studies on it. It makes sense. First off, the trans-vaginal probe is high frequency, there is an empty bladder and there is a regional evaluation of the pelvis. The appendix can lie low and be visualized, and diagnosed with acute appendicitis. Raio also published a study on this in Emergency Medicine International. They studied 224 females with right lower quadrant pain suspicious for appendicitis excluding those pregnant or under 16yrs old. They had 27 with a positive ultrasound for gyn pathology and 55 had appendicitis per OR report. Of course they wondered if they should have looked for the appendix too! Other studies have shown that with both a transabdominal and a transvaginal ultrasound, you can improve accuracy in appendicitis diagnoses, but that wasnt necessarily to look for the appendix. The Journal of Ultrasound in Medicine published in 2006 about a case of transvaginal US and appendicitis very nicely too. The OB literature also stated how some of their cases of pelvic pain had appendicitis seen on both transabdominal and transvaginal ultrasound.

Ok, back to the case reports in WestJEM by Bramante et al. The 2 cases showed the evaluation and pretty obvious sonographic images seen with acute appendicitis with transvaginal ultrasound after an equivocal transabdominal ultrasound:

Screen Shot 2014-05-23 at 1.38.05 PM Screen Shot 2014-05-23 at 1.38.12 PM

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