Childhood parotid swelling has a number of differential diagnosis mostly of inflammatory origin. Pneumoparotitis is an uncommon cause of parotid inflammation. It is caused by an excessive increase of intraoral pressure and secondary passage of air into the Stensen or Stenon duct and its glandular branches. Diagnostic clues can usually be obtained by a directed anamnesis. Ultrasonography (US) an...

We report a rare case of a hemangioma arising from the accessory parotid gland. The patient, a 45-year-old woman, complained of a right midcheek mass. Magnetic resonance imaging showed a well-defined mass located in the right buccal space, anterior to the masseter muscle, and adjacent to the Stensen duct. The mass had high T2-weighted signal intensity and showed strong patchy enhancement with g...

The writings of Niels Stensen (Steno) on mineral growth and modification in his Prodromus, together with work time process other solids, are here synthesized as five classes features defined by changes the visible continuity either or both chemistry orientation. This organization highlights Steno’s implicit recognition fractal, scale-invariant nature natural regard to space, time, material. eff...

The epithelial cells of the human parotid main excretory duct (Stensen) were studied by transmission (TEM) and scanning (SEM) electron microscopy through a variety of procedures that allowed the visualization of their three-dimensional microanatomy. Stensen's duct in humans is lined, in its distal portion, with a pseudostratified epithelium with tall principal cells and smaller basal cells, whi...

This analysis concerns Fallot's tetralogy, a form of cyanotic congenital heart disease about which there is little information relating to the population of north east England, and attempts to assess the influence of familial and other variables possibly concerned in its aetiology. This disease of the heart is named after Fallot who described it in 1888, though it had been recognized as a clini...

Well-chosen illustrations and excerpts from sources including Richard Lower, Thomas Willis, John Mayow, Giovanni Alfonso Borelli, Johannes Bernoulli, Hermann Boerhaave and Albrecht von Haller, aptly evidence the immediate impact of Stensen's theory and the variety of misinterpretations which beset it over the ensuing years. Kardel does not consider the possibility that Stensen may have contribu...

Niels Stensen (1638-1686) was born in Copenhagen. He took courses in medicine at the local university under the guidance of Professor Thomas Bartholin and later at Leiden under the tutelage of Franz de la Boë (Sylvius). While in Holland, he discovered the existence of the parotid duct, which was named Stensen's duct or stenonian duct (after his Latinized name Nicolaus Stenon). He also described...