iliopsoas abscess

Question 1

primary cause of iliopsoas abscess

Answer 1

haematogenous spread of bacteria
staph aureus

Question 2

secondary causes of iliopsoas abscess

Answer 2

crohn’s
diverticulitis, colorectal cancer
UTI, GU cancer
vertebral osteomyelitis
femoral catheter, lithotripsy
endocarditis
IV drug use

Question 3

clinical features of iliopsoas abscess

Answer 3

fever
back/flank pain
limp
weight loss

Question 4

clinical exam for iliopsoas abscess

Answer 4

Place hand proximal to the patient’s ipsilateral knee and ask patient to lift thigh against your hand. This will cause pain due to contraction of the psoas muscle.
Lie the patient on the normal side and hyperextend the affected hip. This should elicit pain as the psoas muscle is stretched.

Question 5

investigation of choice for suspected iliopsoas abscess

Answer 5

CT abdo

Question 6

management of iliopsoas abscess

Answer 6

antibiotics
percutaneous drainage
surgery if indicated