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Showing an expansile lytic lesion in the right superior pubic ramus on the pre-operative pelvic radiograph.
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A pelvic radiograph revealed an expansile lytic lesion involving the right superior pubic ramus (Figure 1).
Showing an expansile osseous mass with multiple cystic components in the right superior pubic ramus as appeared on the pre-operative pelvic MRI.
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A pelvic MRI showed an expansile multicystic bony lesion measuring 6.8 x 3.3 x 4.5 cm with multiple fluid-fluid levels involving the right pubic ramus (Figure 2).
Showing complete curettage of the lesion as appeared on the intra-operative pelvic radiograph.
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Afterwards, using a modified Stoppa approach, an extensive curettage of the cyst was done followed by irrigation with alcohol and saline (Figure 3).
Showing the pelvic radiograph at different follow-up stages ((A) postoperative day 0, (B) postoperative day 17, (C) 8 months post-operatively, (D) 12 months post-operatively).
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Demineralized bone matrix and synthetic biphasic calcium phosphate granules bone graft were subsequently impacted (Figure 4A). The follow-up pelvic radiographs at 17 days, 8 months, and 12 months post-operatively demonstrated that the bone grafted site has matured satisfactorily as shown in Figures 4B-D, respectively.