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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

DISH. (A) Oblique coronal CT scan through sacroiliac joint shows bridging osteophytes in the superior aspect of joint (white arrows), asymmetrical intra-articular fusion of right sacroiliac joint (long black arrow), and flowing anterior osteophytes (short black arrow). (B) T1W coronal MR images show bridging osteophytes in the superior aspect on the right side (white arrow). (C) Corresponding coronal STIR image shows smooth articular surfaces of bilateral sacroiliac joint without erosions (white arrows) and (D) T2W sagittal image through lumbosacral spine shows flowing ossification in the anterior aspect of the vertebral body (white arrow head)
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Figure 17: DISH. (A) Oblique coronal CT scan through sacroiliac joint shows bridging osteophytes in the superior aspect of joint (white arrows), asymmetrical intra-articular fusion of right sacroiliac joint (long black arrow), and flowing anterior osteophytes (short black arrow). (B) T1W coronal MR images show bridging osteophytes in the superior aspect on the right side (white arrow). (C) Corresponding coronal STIR image shows smooth articular surfaces of bilateral sacroiliac joint without erosions (white arrows) and (D) T2W sagittal image through lumbosacral spine shows flowing ossification in the anterior aspect of the vertebral body (white arrow head)

Mentions: Diffuse idiopathic skeletal hyperostosis (DISH) [Figure 17]: Synovial portion of the SI joints is normal with ossification of the iliolumbar ligaments and anterior and superior articular portions of the SI joint. Spine shows characteristic flowing ossifications along the anterolateral aspect of at least 4 contiguous vertebrae[10]


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

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

DISH. (A) Oblique coronal CT scan through sacroiliac joint shows bridging osteophytes in the superior aspect of joint (white arrows), asymmetrical intra-articular fusion of right sacroiliac joint (long black arrow), and flowing anterior osteophytes (short black arrow). (B) T1W coronal MR images show bridging osteophytes in the superior aspect on the right side (white arrow). (C) Corresponding coronal STIR image shows smooth articular surfaces of bilateral sacroiliac joint without erosions (white arrows) and (D) T2W sagittal image through lumbosacral spine shows flowing ossification in the anterior aspect of the vertebral body (white arrow head)
© Copyright Policy - open-access
Related In: Results  -  Collection

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

Figure 17: DISH. (A) Oblique coronal CT scan through sacroiliac joint shows bridging osteophytes in the superior aspect of joint (white arrows), asymmetrical intra-articular fusion of right sacroiliac joint (long black arrow), and flowing anterior osteophytes (short black arrow). (B) T1W coronal MR images show bridging osteophytes in the superior aspect on the right side (white arrow). (C) Corresponding coronal STIR image shows smooth articular surfaces of bilateral sacroiliac joint without erosions (white arrows) and (D) T2W sagittal image through lumbosacral spine shows flowing ossification in the anterior aspect of the vertebral body (white arrow head)
Mentions: Diffuse idiopathic skeletal hyperostosis (DISH) [Figure 17]: Synovial portion of the SI joints is normal with ossification of the iliolumbar ligaments and anterior and superior articular portions of the SI joint. Spine shows characteristic flowing ossifications along the anterolateral aspect of at least 4 contiguous vertebrae[10]

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