Sacral pseudotumor complicating iliac bone harvest: radiographic, CT and MRI appearances.

Kavanagh, Eoin; Roth, Christopher; O'Connell, Martin; Eustace, Stephen · Eur Radiol · 2003

case_report · Level V

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Abstract

We present the imaging appearances of a lytic pseudotumor in the right sacral ala presenting with referred pain to the right thigh. Subsequent imaging revealed the presence of a cystic lesion arising at the site of previous bone graft harvest; CT-guided aspiration yielded synovial fluid presumed to arise from the contiguous sacroiliac joint.

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