EURORAD ESR

Case 10303

Pyogenic sacroiliitis

Author(s)
Mahmoud Shahin1, Agustina Vicente Bartulos1, Jesus Corres Gonzalez2, Esther Garcia Casado1.

Department of Radiology1,
Department of Emergency2,
University hospital Ramon y Cajal,
Ctra. de Colmenar Viejo km. 9, 100.
28034 Madrid, Spain;
Email:mahmoud.shahin@gmail.com.
 
Patient
male, 40 year(s)
 
 
  • Figure 1
    AP radiograph of the pelvis.

    No abnormality is visible.

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: Conventional radiography; Procedure: Diagnostic procedure; Special Focus: Infection;
     
     
  • Figure 2
    CT examination with bone window
     

    Axial plane at the level of the sacroiliac joint shows slight increase in joint space and irregularity of the articular surface.

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: CT-High Resolution; Procedure: Diagnostic procedure; Special Focus: Infection;

    Axial plane at the level of the sacroiliac joint shows slight increase in joint space and bone erosion and ostepenia (black arrow).

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: CT-High Resolution; Procedure: Diagnostic procedure; Special Focus: Infection;

    Coronal MPR reconstruction showing bone erosion at the left sacroiliac joint.

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: CT-High Resolution; Procedure: Diagnostic procedure; Special Focus: Infection;

    Coronal MPR reconstruction showing bone erosion and osteopenia at the left sacroiliac joint.

     
    Area of Interest: Musculoskeletal bone; Imaging Technique: CT-High Resolution; Procedure: Diagnostic procedure; Special Focus: Infection;
     
     
  • Figure 3
    Pelvic CT post administration of iv contrast medium
     

    Enlarged left pelvic musculature, with collections in psoas muscle and iliac muscle.

     
    Area of Interest: Musculoskeletal soft tissue; Imaging Technique: CT-High Resolution; Procedure: Abscess delineation; Special Focus: Abscess;

    Enlarged left pelvic musculature, with collections in iliopsoas muscle and obturator muscle.

     
    Area of Interest: Musculoskeletal soft tissue; Imaging Technique: CT-High Resolution; Procedure: Diagnostic procedure; Special Focus: Abscess;
     
     
No abnormality is visible.
 
Axial plane at the level of the sacroiliac joint shows slight increase in joint space and irregularity of the articular surface.
 
Axial plane at the level of the sacroiliac joint shows slight increase in joint space and bone erosion and ostepenia (black arrow).
 
Coronal MPR reconstruction showing bone erosion at the left sacroiliac joint.
 
Coronal MPR reconstruction showing bone erosion and osteopenia at the left sacroiliac joint.
 
Enlarged left pelvic musculature, with collections in psoas muscle and iliac muscle.
 
Enlarged left pelvic musculature, with collections in iliopsoas muscle and obturator muscle.
 
 
 
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