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At least 343 records · Page 19Linked to original sources

EWING'S TUMOURS AND NEUROBLASTOMAS.

From a study of 59 cases of neuroblastoma and 21 patients classified as cases of Ewing's tumour there appear to be differences in age incidence, duration of disease, gross and microscopical appearance, and metastatic spread. The normal rate of excretion of catecholamines by patients with Ewing's tumour is an additional differentiating feature.

Adolescent↗

NEOPLASIA OF AORTIC INTIMA.

Two cases of arterial obstruction, in the region of the aortic bifurcation, are described. In both cases, cellular proliferation of neoplastic type was found to be causing the obstruction, and in one case small embolic metastases were found in the lower limbs and lungs. No primary tumour was found in any site other than the aortic intima itself. Two apparently similar cases have been reported in recent years. It is suggested that this condition, although probably very rare, may be overlooked for several reasons unless obstructive aortic lesions are examined histologically as a routine.

Aorta↗

CYTOLOGICAL DIAGNOSIS OF BREAST TUMOURS BY THE IMPRINT METHOD.

Tumour imprints were made from 311 breast tumours at the time of frozen section. Rapid and permanent staining methods were employed and the accuracy of diagnosis was compared with that obtained from frozen and paraffin sections. Two false positives (0.65%) and 16 false negatives (5.15%) were found in the imprint group compared with no false positives and five false negatives (1.6%) in the frozen section group. The cytology of breast imprints is described and the false results are analysed. The possible uses of this technique, both alone and in combination with frozen sections, are discussed.

Adenofibroma↗