Fig. 5
From: Clinical characteristics and genetic analysis of A20 haploinsufficiency
CT: a, b: reconstruction of thoracic CT sagittal bone window, c: three-dimensional image showing extensive osseointegration of thoracic spine and disappearance of vertebral facet joint space. MRI: d, T1WI sequence of the sacroiliac joint showing that the bilateral sacroiliac joint space is widened, and the zygomatic side articular surface is jagged. e, FSPD sequence showing multiple patchy high signals below the sacroiliac joint, suggesting bone marrow oedema with the right sacroiliac joint as the focus; f, g, T1WI sequence of enhanced fat suppression scans showing significant enhancement of the bilateral articular surfaces, indicating the presence of active inflammation