Imfection of all the following structures can be cause Psoas Abscess except

Abscess in the psoas region in the iliac fossa, is commonly due to tuberculosis of spine (T 10) and lymph nodes, retroperitoneal structures, lower intercostal region. * It can also be a pyogenic abscess. Clinical Features * Back pain, fever, spinal tenderness, para spinal spasm and restricted spine movement. ref:SRB&;S manual of surgery,ed 3,pg no 651