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Seronegative spondyloarthropathy-related sacroiliitis: CT, MRI features and differentials.

Prakash D, Prabhu SM, Irodi A - Indian J Radiol Imaging (2014)

Bottom Line: Seronegative spondyloarthropathy is a group of chronic inflammatory rheumatic diseases that predominantly affect the axial skeleton.Involvement of sacroiliac joint is considered a hallmark for diagnosis of seronegative spondyloarthropathy and is usually the first manifestation of this condition.We present a pictorial essay of CT and MRI imaging findings in seronegative spondyloarthropathy-related sacroiliitis in various stages and highlight common differentials that need to be considered.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Christian Medical College, Vellore, Tamil Nadu, India.

ABSTRACT
Seronegative spondyloarthropathy is a group of chronic inflammatory rheumatic diseases that predominantly affect the axial skeleton. Involvement of sacroiliac joint is considered a hallmark for diagnosis of seronegative spondyloarthropathy and is usually the first manifestation of this condition. It is essential for the radiologist to know the computed tomography (CT) and magnetic resonance imaging (MRI) features of spondyloarthropathy-related sacroiliitis as imaging plays an important role in diagnosis and evaluation of response to treatment. We present a pictorial essay of CT and MRI imaging findings in seronegative spondyloarthropathy-related sacroiliitis in various stages and highlight common differentials that need to be considered.

No MeSH data available.


Related in: MedlinePlus

Acute-on-chronic sacroiliitis. (A) Coronal oblique T1W MR image without fat suppression in a 39 year old female with ankylosing spondylitis shows fat deposition on both sacral sides (black arrows) and iliac sides (white arrows). (B) Corresponding STIR images through sacroiliac joint show subchondral edema (active sacroiliitis) (white arrows), areas of fat suppression (chronic sacroiliitis) (black arrows), and synovitis (thick white arrows)
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Figure 10: Acute-on-chronic sacroiliitis. (A) Coronal oblique T1W MR image without fat suppression in a 39 year old female with ankylosing spondylitis shows fat deposition on both sacral sides (black arrows) and iliac sides (white arrows). (B) Corresponding STIR images through sacroiliac joint show subchondral edema (active sacroiliitis) (white arrows), areas of fat suppression (chronic sacroiliitis) (black arrows), and synovitis (thick white arrows)

Mentions: In the presence of acute-on-chronic sacroiliitis, subchondral bone marrow edema may be seen in a background of subchondral fat deposition and other signs of chronic sacroiliitis [Figure 10]. Active erosions may show underlying bone marrow edema and enhancement on post-contrast scans.


Seronegative spondyloarthropathy-related sacroiliitis: CT, MRI features and differentials.

Prakash D, Prabhu SM, Irodi A - Indian J Radiol Imaging (2014)

Acute-on-chronic sacroiliitis. (A) Coronal oblique T1W MR image without fat suppression in a 39 year old female with ankylosing spondylitis shows fat deposition on both sacral sides (black arrows) and iliac sides (white arrows). (B) Corresponding STIR images through sacroiliac joint show subchondral edema (active sacroiliitis) (white arrows), areas of fat suppression (chronic sacroiliitis) (black arrows), and synovitis (thick white arrows)
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4126143&req=5

Figure 10: Acute-on-chronic sacroiliitis. (A) Coronal oblique T1W MR image without fat suppression in a 39 year old female with ankylosing spondylitis shows fat deposition on both sacral sides (black arrows) and iliac sides (white arrows). (B) Corresponding STIR images through sacroiliac joint show subchondral edema (active sacroiliitis) (white arrows), areas of fat suppression (chronic sacroiliitis) (black arrows), and synovitis (thick white arrows)
Mentions: In the presence of acute-on-chronic sacroiliitis, subchondral bone marrow edema may be seen in a background of subchondral fat deposition and other signs of chronic sacroiliitis [Figure 10]. Active erosions may show underlying bone marrow edema and enhancement on post-contrast scans.

Bottom Line: Seronegative spondyloarthropathy is a group of chronic inflammatory rheumatic diseases that predominantly affect the axial skeleton.Involvement of sacroiliac joint is considered a hallmark for diagnosis of seronegative spondyloarthropathy and is usually the first manifestation of this condition.We present a pictorial essay of CT and MRI imaging findings in seronegative spondyloarthropathy-related sacroiliitis in various stages and highlight common differentials that need to be considered.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Christian Medical College, Vellore, Tamil Nadu, India.

ABSTRACT
Seronegative spondyloarthropathy is a group of chronic inflammatory rheumatic diseases that predominantly affect the axial skeleton. Involvement of sacroiliac joint is considered a hallmark for diagnosis of seronegative spondyloarthropathy and is usually the first manifestation of this condition. It is essential for the radiologist to know the computed tomography (CT) and magnetic resonance imaging (MRI) features of spondyloarthropathy-related sacroiliitis as imaging plays an important role in diagnosis and evaluation of response to treatment. We present a pictorial essay of CT and MRI imaging findings in seronegative spondyloarthropathy-related sacroiliitis in various stages and highlight common differentials that need to be considered.

No MeSH data available.


Related in: MedlinePlus