Exploration of Musculoskeletal Diseases

From: Is there a place for magnetic resonance imaging in diffuse idiopathic skeletal hyperostosis?

Table 1

MRI characteristics of the SIJ and the spine in patients with DISH vs. SpA and degenerative disease

MRI lesions		DISH	SpA	Degenerative changes
SIJ	Periarticular BME Suggestive of SpA	Rare Upper part of SIJ	Common Along entire SIJ	Rare Upper part of SIJ
	Erosions	Rare	Common	Rare
	Bone production	Bridging osteophytes anterior to SIJ	Intra-articular bridging osteophytes	Small periarticular osteophytes
	Periarticular fat metaplasia	Rare	Common	Rare
Spine	Bone production	Thick, bridging horizontal osteophytes	Thin, slender, vertical syndesmophytes	Horizontal osteophytes
	BME corners	Present but uncommon	Common	Present but uncommon
	Fat corners	Present, not rare	Common	Present, not rare

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