Aortic dissection presenting as uniocular blindness.

A patient presented with uniocular blindness and headache, which was initially suspected to be subarachnoid hemorrhage. The patient had a seven-year history of diabetes mellitus, hypertension and hypothyroidism, as well as a two-year history of congestive cardiac failure with aortic regurgitation. Upon autopsy, the patient was diagnosed with aortic dissection.

Rectilinear scanning in the detection of acute myocardial infarction.

Myocardial scintigraphy with phosphate bone scanning agents is a new and very useful development in the detection of acute myocardial infarction. Initial experience using a rectilinear scanner is described in 50 consecutive patients admitted to hospital because of suspected myocardial infarction. The routine dose was 15 mCi/5 mg, 99Tcm stannous pyrophosphate intravenously with anterior, left anterior oblique, and lateral scans obtained 45-90 minutes after injection.