Psoas Abscess Extended to the Anterolateral Abdominal Wall Complicating Acute Appendicitis

Abstract

A psoas abscess is a purulent collection of the psoas muscle, most often secondary to a locoregional infectious focus that may be intra- or retroperitoneal. Appendicitis ranks second (16%) after crohn's disease (60%) among digestive etiologies of psoas abscesses. Its etiological diagnosis can prove difficult. Imaging is therefore essential. We report the case of a psoas abscess extending to the anterolateral abdominal wall complicating acute appendicitis in a 24-year-old female patient admitted to the emergency department for an appendicular syndrome associated with psoitis. Imaging (abdominal CT scan) showed a huge collection in the psoas muscle extending to the right anterolateral abdominal wall. The procedure consisted of appendectomy with copious lavage and drainage with two delbet blades.