Diexodus medica de hepatis

93. Things are emphractica obstructive in so far as they stick or persist in a coagulated state due to an acquired viscosity, or are delayed by being abundantly accumulated. Not only this, but also by accident, through a more avid attracting power, a more intense retaining power, and a more languid expelling power; whence there are present things that it would be better if they were absent.

94. Obstruction occurs in both the convex and concave parts, but more often in the concave, where humors first arrive. This happens not only in the ducts of the branches, by which the cooking and purging of the blood take place, but also around the openings of the portal vein itself. It is diagnosed by slight pain around the hypochondria during the passage of food.

95. In the convex parts it happens more rarely, where the duct is broader and is received into a more ample space, and where thinner blood reaches. Yet it can occur in the plethora fullness/overabundance of the whole, if the blood remains there too long, and especially if an intemperies that produces concretion is present, and then if the repletion of the hollow parts becomes increasingly burdensome.

96. Bodies are subject to obstruction in which the veins are thinner from their first origin, or even wonderfully tangled with one another; or whose faculties are weakened by age or another method; or whose diet is more abundant, or from thicker, viscous, sweet, or astringent food. The effect usually follows untimely motion and attraction toward the periphery, and a preposterous order of food and incontinence of desire.

97. When the portals of the openings are occluded in some part, the indiscrete chyle slips through the intestines, appearing more abundantly and showing a meager species of blood; just as happens when the branches of the mesaraicarū mesenteric veins are intercepted, but in this case, the body is less in need of food than of that.