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✓ From among 1500 patients who underwent computerized tomography (CT) during an 18-month period, five cases of hydatid disease of the brain were diagnosed. The preoperative diagnosis is of paramount importance as the cyst has to be removed unruptured. The CT features of this condition are practically pathognomonic. The authors discuss the CT findings in these cases and differential diagnosis with other cystic lesions of the brain. The help that this safe and sure method of investigation gives to attain preoperative diagnosis is emphasized.

A 14-year-old boy, admitted with intractable chest pain, was found to have an enlarged heart and calcification in the apical region, with electrocardiographic features of massive inferolateral myocardial infarction. Left ventricular angiography revealed a large left ventricular aneurysm. He died following resection of the aneurysm and post mortem examination showed changes of a non-specific chronic myocarditis. A vasculitis involving small coronary arterioles was also found in the vicinity of the aneurysm, and the possibility of a rheumatic vasculitis was suggested by a transient episode of an erythema marginatum-like eruption. It is concluded that the association of infarction pattern on the electrocardiogram together with calcification of the heart in children is highly suggestive of a ventricular aneurysm secondary to a myocarditis or a vasculitis involving small, intramyocardial branches of the coronary arteries.

Neurofibromatosis is seen in association with elephantiasis neuromatosa and overgrowth of abnormal bones, but rarely with subperiosteal hemorrhage. This is a secondary finding after severe or minor trauma to the periosteum, which is abnormally loose from mesodermal dysplasia. The clinical, plain radiographic, and angiographic findings of 2 cases of massive subperiosteal hemorrhage are presented, and the literature reviewed.