We describe a case of right ilio-psoas abscess caused by stump appendicitis 14 years after open appendectomy.
Stump appendicitis is a rare complication of appendectomy. Right ilio-psoas abscess was diagnosed in an immunecompetent patient and treated by ultrasound guided percutaneous drainage twice without identifying the cause of the
abscess. The patient did not improve until diagnostic laparoscopy was performed revealing a long stump appendicitis
to be the origin of infection. It was treated by completion appendectomy. Surgical exploration may be necessary in
persistent or recurrent ilio-psoas abscesses. We identified 4 reported cases of post-appendectomy ilio-psoas abscess
but without recognizing the cause of the abscess and its relation to appendectomy. This is the first reported case of
ilio-psoas abscess that developed as a complication of stump appendicitis.