====== 1768 ====== [[1767]]-[[1769]] ---- ---- [[Subperiosteal abscess]] of the anterior wall of the [[frontal sinus]] associated with underlying frontal [[osteomyelitis]]. ---- It is named after Sir [[Percivall Pott]], an English surgeon who described it in [[1768]] ---- Robert Whytt (1714– 1766) expressed grave trepidation when commenting on ventricular drainage in his Observations on Dropsy in the Brain, ((Whytt R: Observations on Dropsy in the Brain. Edinburgh: J. Balfour, 1768)) published in 1768.