Lucent Liver

A diffuse increase in lucency superimposed on the liver by free air can be a crucial but subtle finding (Figs. 7-8 and 7-32). Depending on the habitus of the patient, the right lateral border of the lucency may be straight. This observation was formerly considered a sign of hydrop-

neumoperitoneum. However, it may be caused by air alone because the straight lateral border can reflect the interface of the curving anterolateral abdominal wall and the ventral collection of free air even without the presence of associated ascites.

Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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