A patient had persistent pain in left wrist of 2 years' duration. Only intravenous digital subtraction angiography was specific in establishing a tumor in the left triquetrum as the cause. The tumor was an osteoblastoma.
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Basilar artery perforator aneurysms (BAPAs) are rare and may be occult on initial imaging due to their small size and susceptibility to intermittent thrombosis.1 2 Conventional treatments for aneurysms (eg, clipping or coiling) have proved challenging.3 Recently, endovascular electrocoagulation has been shown to be effective for BAPAs.
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