case_images: PMC10629326_01
case_images: (a and b) Three-dimensional reconstruction and coronal plane of the computed tomography (CT) scan demonstrates the pseudoarticulation on the left side between the transverse process (TP) of the L5 vertebra, sacral ala, and ilium (red arrow). (c) Axial CT scan demonstrates the enlarged TP (blue arrow).
case_images: SNI-14-383-g001.jpg
case_images: PMC10629326_01_SNI-14-383-g001.jpg
case_images: F1
case_images: The CT demonstrated findings consistent with the diagnosis of BS: a pseudoarticulation on the left between the TP of the L5 vertebra, sacral ala, and ilium (i.e., Castellvi classification: Type IIa [Table 1]) [Figure 1].