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      Dermatopathology

      Diagnosis by First Impression

       Fourth Edition

       Christine J. Ko

      Professor of Dermatology and Pathology

      Yale University School of Medicine

      New Haven, CT, USA

       Ronald J. Barr

      Dermatopathologist

      Barr Dermatopathology

      Newport Harbor Pathology Medical Group

      Irvine, CA, USA

      and

      Professor Emeritus, Dermatology and Pathology

      University of California

      Irvine, CA, USA

      This fourth edition first published 2022

      © 2022 John Wiley & Sons Ltd

      Edition History John Wiley & Sons, Ltd (3e, 2017, 2e 2011); Christine J. Ko and Ronald J. Barr (1e, 2008)

      All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, except as permitted by law. Advice on how to obtain permission to reuse material from this title is available at http://www.wiley.com/go/permissions.

      The right of Christine J. Ko and Ronald J. Barr to be identified as the authors of this work has been asserted in accordance with law.

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       Library of Congress Cataloging‐in‐Publication Data

      Names: Ko, Christine J., author. | Barr, Ronald J. (Dermatopathologist) author.

      Title: Dermatopathology : diagnosis by first impression / Christine J. Ko, Ronald J. Barr.

      Description: Fourth edition. | Hoboken, NJ : Wiley‐Blackwell, 2022. | Includes index.

      Identifiers: LCCN 2021049387 (print) | LCCN 2021049388 (ebook) | ISBN 9781119826057 (paperback) | ISBN 9781119826064 (adobe pdf) | ISBN 9781119826071 (epub)

      Subjects: MESH: Skin Diseases–diagnosis | Skin Diseases–pathology | Microscopy | Skin–pathology | Atlas

      Classification: LCC RL96 (print) | LCC RL96 (ebook) | NLM WR 17 | DDC 616.5/075–dc23/eng/20211015

      LC record available at https://lccn.loc.gov/2021049387 LC ebook record available at https://lccn.loc.gov/2021049388

      Cover Design: Wiley

      Cover Images: Courtesy of Christine J. Ko

      Main image shown is epidermodysplasia verruciformis; small images, from left to right, are subcutaneous fat necrosis of the newborn, mastocytosis, tubular apocrine adenoma, and plantar fibromatosis.