Chronic arsenical poisoning may result in the development of hyperkeratoses of the extremities and squamous or basal cell carcinoma of a superficial or invasive type. There is increasing evidence that it may also cause visceral cancer.
A review of the incidence of appendicectomy in general practice in Upington in all three racial groups is presented.
The theory and fundamental characteristics of the Wenckebach phenomenon are descriptionbed.
A case of the basal cell naevus syndrome has been presented.