South African Medical Journal - Volume 49, Issue 6, February 1975

Tetralogy of Fallot consists essentially of two abnormalities: a large, unrestrictive ventricular septal defect and severe obstruction to the outflow of the right ventricle.

The histology of the initial biopsy specimens of 473 patients with tumours of the urinary bladder has been reviewed and the tumours categorised.

The auscultatory signs in 90 subjects with hypertrophic obstructive cardiomyopathy are descriptionbed.

Two studies on a total of 45 patients with chronic osteoarthritis using fenoprofen calcium are presented.

The principles of neutron activation analysis are briefly discussed.

Haemangiopericytoma is a very vascular tumour which is slow growing and often painless. It is important to realise the malignant potential of these tumours and to treat them by wide surgical excision.