An osteoid osteoma in the anterior part of the body of the fourth cervical vertebra occurred in a 22-year-old female. The patient's main complaint was neck pain and occasional numbness of the extremities. The pain was relieved by analgesics. Plain radiography and a 99Tcm MDP bone scan showed a non-specific abnormality. CT suggested the pathological diagnosis with reasonable certainty. The unusual location of the lesion and the role of various diagnostic modalities are discussed and the literature reviewed.
A patient is presented in whom iophendylate (Pantopaque) within the basal cisterns closely resembled the appearance on MRI of thrombosed aneurysms of the middle cerebral arteries. The sometimes subtle differences between the appearances on MRI of Pantopaque and aneurysmal clot are discussed to permit accurate diagnosis without resorting to more invasive diagnostic tests, such as cerebral angiography.
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