Neutrophils, hemorrhagic foci and numerous plasma cells are additional findings.
[6] Arguably XO is the bone localization of the xanthogranulomatous process occurring in several other locations.
[2] As of 2011 five cases had been reported, involving rib, tibial epiphysis, ulna, distal tibia and femur.
Pain, swelling of possibly long duration, fever and increased ESR are some of the main clinical findings.
[2][3][4][5] Antibiotics have been used with success for cases with positive cultures, Curettage, bone grafting, and resection has been described in few studies.