Gantry tilt technique for CT-guided biopsy and drainage.

An angled approach to percutaneous biopsy or drainage using CT guidance is often required to avoid transgressing vital intervening structures. We describe a simple technique for CT-guided angled biopsy. By tilting the CT gantry off the axial plane, CT scans can be obtained that directly demonstrate the appropriate angle of approach while avoiding intervening structures.

B-cell lymphoproliferative disorders in children after bone marrow transplantation: radiologic manifestations.

The radiographic findings in five pediatric patients in whom unregulated B-cell lymphoproliferative disorders developed following bone marrow transplantation are described. Four patients received T-cell-depleted bone marrow from mismatched donors and one received nondepleted marrow from a matched sibling donor. These disorders are similar to B-cell lymphoproliferative disorders that have been described in other immunosuppressed hosts.