Atlas of Normal Roentgen Variants That May Simulate Disease , livre ebook

Atlas of Normal Roentgen Variants That May Simulate Disease
Ninth Edition

Theodore E. Keats, MD†
Formerly, Alumni Professor of Radiology, Department of Radiology, University of Virginia Health System, Charlottesville, Virginia

Mark W. Anderson, MD
Harrison Distinguished Teaching Professor of Radiology, Chief, Division of Musculoskeletal Radiology, Department of Radiology, University of Virginia Health System, Charlottesville, Virginia
SAUNDERS
Table of Contents
Cover image
Title page
Copyright
Foreword
Preface
PART ONE: The Bones
Chapter 1: The Skull
Chapter 1: The Skull - Supplement (Online Only)
Chapter 2: The Facial Bones
Chapter 2: The Facial Bones - Supplement (Online Only)
Chapter 3: The Spine
Chapter 3: The Spine - Supplement (Online Only)
Chapter 4: The Pelvic Girdle
Chapter 4: The Pelvic Girdle - Supplement (Online Only)
Chapter 5: The Shoulder Girdle and Thoracic Cage
Chapter 5: The Shoulder Girdle and Thoracic Cage - Supplement (Online Only)
Chapter 6: The Upper Extremity
Chapter 6: The Upper Extremity - Supplement (Online Only)
Chapter 7: The Lower Extremity
Chapter 7: The Lower Extremity - Supplement (Online Only)
PART TWO: The Soft Tissues (Online Only)
Chapter 8: The Soft Tissues of the Neck
Chapter 9: The Soft Tissues of the Thorax
Chapter 10: The Diaphragm
Chapter 11: The Soft Tissues of the Abdomen
Chapter 12: The Soft Tissues of the Pelvis
Chapter 13: The Genitourinary Tract
Index
Copyright

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ATLAS OF NORMAL ROENTGEN VARIANTS THAT MAY SIMULATE DISEASE, NINTH EDITION
978-0-323-07355-4
Copyright © 2013 by Saunders, an imprint of Elsevier Inc.
Copyright © 2007, 2001, 1996, 1992, 1988, 1979, 1973 by Mosby, an affiliate of Elsevier Inc.
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Notices
Knowledge and best practice in this field are constantly changing. As new research and experience broaden our understanding, changes in research methods, professional practices, or medical treatment may become necessary.
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Library of Congress Cataloging-in-Publication Data
Keats, Theodore E. (Theodore Eliot), 1924–2010.
Atlas of normal roentgen variants that may simulate disease / Theodore E. Keats, Mark W. Anderson. — 9th ed.
p. ; cm.
Includes index.
ISBN 978-0-323-07355-4 (hardcover : alk. paper)
I. Anderson, Mark W., 1957– II. Title.
[DNLM: 1. Radiography—Atlases. 2. Artifacts—Atlases. 3. Diagnostic Errors—Atlases. WN 17]
616.07′572—dc23
2012007237
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Printed in China
Last digit is the print number: 9 8 7 6 5 4 3 2 1
Foreword



“He was a man.
Take him for all in all.
I shall not look upon his like again.”
Hamlet (referring to his father)
Since the previous edition of this text was published, the world of radiology lost one of its giants. Theodore Elliot Keats, the personification of a true Virginia gentleman, passed away on December 10, 2010, and just as Hamlet felt about his father, I too have no doubt that we shall not look upon his like again.
In addition to being a successful chairman, prolific writer, and world-renowned speaker, Ted was also a consummate clinical radiologist who loved nothing more than teaching a resident at the viewbox, all the while keeping his keen eye out for a new normal variant. Not a week would go by that he didn’t add to his unparalleled collection, and it was his unending curiosity and observational acuity that resulted in this now legendary text. Thankfully, he was able to continue to teach and discover new entities until the week before he died at the age of 85!
But beyond all of his professional accomplishments, his awards, and accolades, Ted was a wonderful husband, father, grandfather, colleague, and friend. His warm smile and quick laugh were infectious, and his absence has left a large void in our department as well as in the hearts of those who knew him well. Even so, his presence will live on in those who knew him, and like Gray’s Anatomy and Grant’s Atlas , there will always be a Keats’ Normal Variants . No matter how much our imaging technology changes, the incredible variability of what is “normal” in the human body will not, nor will our efforts to find and catalog new examples to add to this volume.
Ted would have wanted it that way.
Preface

PREFACE TO THE NINTH EDITION


“…can one desire too much of a good thing?”
WILLIAM SHAKESPEARE (As You Like It)
Over the years, this atlas has become the definitive work on normal roentgen variants and is a lasting testimony to the energy, organization, and endless curiosity of its creator and curator, Ted Keats. With each new edition Ted would add several examples of newly discovered variants or better examples of those already in print, but since the publication of the last edition, we have noticed that we sometimes think twice about lifting it off of the shelf because of its sheer size and weight. Perhaps there really can be too much of a good thing!
As a result, you’ll notice that this ninth edition has a very different look and feel. We have again added some new cases to the mix, but we have also carefully gone through and removed many of the duplicate examples, exceedingly rare entities, or some illustrations that just did not project well. Additionally, because of the increased use of cross-sectional imaging for evaluating the soft tissues, we have removed the chapters dealing with soft tissue variants and made those available online for those who purchase this volume, along with all of the skeletal variants that were removed from the eighth edition. What is left is a more manageable volume that contains the best of the collection and that should provide more than enough variety to warrant its continued presence in the reading room.
With Ted’s passing, we’ve entered a new era, but his infectious enthusiasm for this topic lives on, and we will continue the search for normal variation unabated. He would have wanted it that way!

Mark W. Anderson

PREFACE TO THE EIGHTH EDITION


What nature delivers to us is never stale. Because what nature creates has eternity in it.
ISAAC BASHEVIS SINGER
Nature’s bounty is endless, and our study of normal anatomic variation confirms this. It is this constant variation of anatomy that makes diagnostic radiology such an exciting and challenging occupation.
In this edition we present the products of our recent experience and have included CT and MRI amplification of some of these entities. We have also substituted better examples of variants previously presented.
In our preface to the last edition, we suggested that since plain film radiography of the skull was becoming passé, it might behoove us to eliminate this section. Unfortunately, as the art of plain film interpretation of the skull is diminishing, there is a corresponding increase in errors of interpretation, particularly in the overdiagnosis of normal variation. To this end, we have decided to leave this section in place.
We are pleased with the continued enthusiastic reception of this work by our colleagues and appreciate the contributions of physicians who have