The alliteratively named Percival Pott [1] wrote his epochal paper on occupational cancer. He had drawn attention to the peculiar liability of chimney sweepers to death from cancer of scrotal origin. As he wrote, “It is a disease which always makes its first attack on, and its first appearance in the inferior part of the scrotum; where it produces a superficial, painful, ragged, ill-looking sor...

Pott has shown that the product of two semiregular relative difference sets in commuting groups El and E2 relative to their intersection subgroup C is itself a semiregular relative difference set in their amalgamated direct product. We generalise this result in the case that C is central in El and in E2 by using an equivalence with corresponding co cycles 7./Jl and 'l/J2' We prove that in the c...

Tuberculosis is still one of the most important health problems in the world. In developed countries, the proportion of extrapulmonary tuberculosis cases is increasing. Nowadays tuberculous spondylitis, also known as Pott disease, is a rare clinical condition but can cause severe vertebral and neurological sequelae that can be prevented with an early correct diagnosis. The aim of this paper is ...

Squamous cell carcinoma of the scrotum is a tumor that is of interest for clinical and historical reasons. It was the first cancer linked to occupational exposure when, in 1775, Perivall Pott described it in chimney sweeps in England. Other occupations that had a preponderance of the disease included people who worked with the distillates of coal and men exposed to mineral oil. Currently, the d...

R. V. Immink, F. C. Pott, N. H. Secher, and J. J. van Lieshout Laboratory for Clinical Cardiovascular Physiology, Department of Anatomy, Embryology, and Physiology, AMC Center for Heart Failure Research, Academic Medical Centre, University of Amsterdam, Amsterdam, the Netherlands; Department of Anesthesiology, University Medical Center, Utrecht, the Netherlands; Department of Anesthesia, Bispeb...