Acute Attack of Pseudogout with the Wide Lesion in Lumbar Spondylolytic Spondylolisthesis

Figure 5

(a) Aspiration of the L3-4 interspinous space yielded a murky, pus-like synovial effusion. (b) Multiple cultures of the synovial fluid tested negative for bacteria and fungi, whereas compensated polarized light microscopy revealed monocle or triclinic intracellular crystal with a positive birefringence.

(a)

(b)