Primary pyogenic abscess of the psoas muscle.

Primary pyogenic abscess of the psoas muscle

“…Pus may also enter the adductor angle and cause pain in the proximal part of the thigh. In Anaemia, leucocytosis with a shift to the left and an elevated ESR are common [2,3,5,7]. In our series, 8 patients had leucocytosis, one had anaemia, and the ESR was elevated in each.…”

“…Five of our patients had no psoas muscle shadow on the plain film. Unfortunately, this finding may also be present in a healthy person and it correlates poorly with a lesion in the psoas muscle [5,6]. A chest Xray may show elevation of the diaphragm and pleural effusion [7] but only one patient in our series had a pleural effusion.…”

“…The most significant features on a plain radiograph of the abdomen are loss of definition of the psoas muscle and gas in the soft tissues [5]. Five of our patients had no psoas muscle shadow on the plain film.…”

“…Staphylococcus aureus is the most common pathogen in primary psoas abscesses [5]. Some authors have speculated that suppurative lymphadenitis [11,12] and trauma with the formation of a haematoma may be the mechanism of infection.…”

Imaging on pelvic pyomyositis in children related to pathogenesis

“…Pain, impaired ambulation, non weight-bearing, localized swelling, limp, and fever are the most common signs [3,7], and it could be accepted that pain, fever, and limp are present in almost 100% of cases [3]. Increasing pain in internal rotation and extension, abdominal, genitourinary or spinal complaints, and fixed flexion deformity US ultrasound examination, CT computed tomography, MRI magnetic resonance imaging, OI obturator internus muscle, OE obturator externus muscle, add adductors muscles, quad quadratus femoris muscle, glut gluteus medius muscle, il iliacus muscle, ischpub ischiopubic area, isch ischial bone, s/i sacroiliac joint are more specific signs of psoas pyomyositis [11,15]. In the present series, abdominal and groin pain and te inability to bear weight were the most common referring symptoms.…”