Imaging of Gastrointestinal Tract Tumors describes current imaging practice for the most commonly encountered benign and malignant digestive tract tumors and gives a review of the literature for less frequent tumors. General features (anatomic data, frequency, clinical and biologic signs, treatment) are discussed for all pathologies prior to description of imaging techniques, which include barium studies, ultrasonography and angiography, and above all CT. MRI appears particularly indicated for esophageal carcinoma and pelvic recurrences of colorectal cancers. The book is divided into three main section - benign tumors, malignant tumors, and tumors with an indeterminate prognosis - reflecting the value of different imaging strategies as a function of a tumor's natural history. The thorough analysis of literature for both frequent and less common tumors allows global evaluation of the diagnostic possibilities of imaging techniques, making Imaging of Gastrointestinal Tract Tumors a reference work for all specialists concerned with digestive tract pathologies.

This book argues that a leadership crisis in America is evident in the failure of the past three presidents and their Congresses to meet four challenges: the proliferation of nuclear weapons; out of control immigration; judicial activism; and the increasingly bizarre means by which we choose presidential candidates - politics as entertainment - in which self-nominated amateurs who look and sound good on television can reach the White House.

The Iranian crisis and the dangers of Vladimir Putin's return to the Russian presidency are explored within the context of nuclear proliferation. The book recommends term limits and age limits for federal judges and members of Congress, and sensible new rules for primary elections and nominating conventions, as well as reforms that will provide experienced, peer-reviewed candidates for president.

The Tea Party and other citizens' movements are responding to the ongoing crises, but the political class is not. This book examines the four crises and offers remedies based on the Constitution, traditional values, and common sense.