Fig. 4From: Anatomy of the sacroiliac joints in children and adolescents by computed tomographyMultiple (≥ three) ossified nuclei in the joint space in a 16-year-old boy. Left images labeled (a), (b) – semi-coronal slices; right semi-axial images marked by (c) at the level of S1 and (d), (e) at the level of S2. White arrows – ossified nuclei lateral to the first sacral segment; black arrows – ossified nuclei lateral to the second sacral segmentBack to article page