Non-tuberculous iliopsoas abscess due to perforated diverticulitis presenting with intestinal obstruction and a groin mass

Psoas abscess is an uncommon condition and, contrary to traditional teachin g, tends to be of non-tuberculous aetiology in developed countries. Diagnos is can be delayed since presenting features are non-specific and in many in stances misleading, necessitating a high degree of clinical suspicion and e arly resort to cross-sectional imaging using CT or MRI. We present a case o f iliopsoas abscess secondary to perforated diverticulitis to illustrate th e difficulty encountered in early diagnosis and to show that successful man agement of secondary psoas abscess necessitates surgical resection of the u nderlying condition in most cases.