Practical Pathology for Dental Students Harsh Mohan, Sugandha Mohan
Chapter Notes

Save Clear

1PRACTICAL PATHOLOGY for Dental Students2
3PRACTICAL PATHOLOGY for Dental Students
Second Edition
Harsh Mohan MD, FAMS, FICPath, FUICC Former Professor and Head Department of Pathology Government Medical College and Hospital Chandigarh-160 031 INDIA E-mail: Sugandha Mohan BDS, DDS (NYUCD, NY, USA) E-mail:
4 Jaypee Brothers Medical Publishers (P) Ltd.
Jaypee Brothers Medical Publishers (P) Ltd.
4838/24, Ansari Road, Daryaganj
New Delhi 110 002, India
Phone: +91-11-43574357
Fax: +91-11-43574314
Overseas Offices
J.P. Medical Ltd
83, Victoria Street, London
Phone: +44-20 3170 8910
Fax: +44(0)20 3008 6180
Jaypee-Highlights Medical Publishers Inc
City of Knowledge, Building 235, 2nd Floor
Clayton, Panama City, Panama
Phone: +1 507-301-0496
Fax: +1 507-301-0499
Jaypee Medical Inc
325, Chestnut Street
Suite 835, Philadelphia, PA 19106
Phone: +1 267-519-9789
Jaypee Brothers Medical Publishers (P) Ltd
Bhotahity, Kathmandu, Nepal
Phone: +977-9741283608
© 2017, Jaypee Brothers Medical Publishers
The views and opinions expressed in this book are solely those of the original contributor(s)/author(s) and do not necessarily represent those of editor(s) of the book.
All rights reserved. No part of this publication may be reproduced, stored or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission in writing of the publishers.
All brand names and product names used in this book are trade names, service marks, trademarks or registered trademarks of their respective owners. The publisher is not associated with any product or vendor mentioned in this book.
Medical knowledge and practice change constantly. This book is designed to provide accurate, authoritative information about the subject matter in question. However, readers are advised to check the most current information available on procedures included and check information from the manufacturer of each product to be administered, to verify the recommended dose, formula, method and duration of administration, adverse effects and contraindications. It is the responsibility of the practitioner to take all appropriate safety precautions. Neither the publisher nor the author(s)/editor(s) assume any liability for any injury and/or damage to persons or property arising from or related to use of material in this book.
This book is sold on the understanding that the publisher is not engaged in providing professional medical services. If such advice or services are required, the services of a competent medical professional should be sought.
Every effort has been made where necessary to contact holders of copyright to obtain permission to reproduce copyright material. If any have been inadvertently overlooked, the publisher will be pleased to make the necessary arrangements at the first opportunity.
Inquiries for bulk sales may be solicited at:
Assistant Editor: Praveen Mohan
Practical Pathology for Dental Students
First Edition : 2011
Second Edition : 2017
Printed at
There is nothing in the world equal in purity to knowledge, the person who is perfected by yoga, finds it of himself in the self by the course of time.
(The Bhagvatgita: Ch IV, Verse 38)
After wide support and success of maiden edition, we are pleased to present the second revised edition of Practical Pathology for Dental Students along with the fifth revised edition of Essential Pathology for Dental Students. The objective of revised edition remains the same as was for the first edition.
It is common knowledge that students of dentistry in India (and in many other countries) learn pathology in two phases—General Pathology in second year and Oral Pathology in their third year of the course. As an experienced teacher (first author, Harsh Mohan) and as a young dentist practicing in USA (Coauthor, Sugandha Mohan), it has been our observation that BDS students who are studying in shared campuses for BDS and MBBS students, do not get sufficient attention in general medical subjects from their teachers of medical college compared from the attention and care, they get from their teachers of core dental subjects from their dentistry teachers. It is also recalled that until a few years back, there were no separate books meant for students of dentistry in general medical subjects taught to dental students. In fact, our Practical Pathology for Dental Students in 2011 was the first exclusive practical book in pathology as per requirement and syllabus of second year BDS students. It is heartening to note with satisfaction that the first edition of this book was able to achieve the aim of helping the students and the teachers engaged in teaching General Pathology to second year BDS students, in bringing about uniformity in teaching/learning and evaluation, rather than use of discretion of teacher/examiner to decide what to teach and evaluate and what to leave out for dental students, or left to speculation of the learner.
The revised second edition of Practical Pathology for Dental Students, has further attempted to bridge the lacuna, and structured it as per requirements prescribed by the Dental Council of India (DCI) in the revised syllabus of Pathology for second year BDS students.
Some highlights of the second revised edition are as under:
Updated and well-organised contents: The book is organised systematically into 4 Sections, each section having practical exercises (in all 27 now compared from 25 in first edition) patterned on the format of practical class of students. These are: Techniques in Pathology (Exercise 1-5), Clinical Pathology and Basic Cytopathology (Exercise 6-8), Haematology (Exercise 9-15) and Histopathology (Exercise 16-27).
Hone your diagnostic skills: The book is structured in a way that it aims to hone the practical and diagnostic skills of the learner in pathology in a user-friendly manner. All exercises have listed key features point-wise for easy understanding and reproducibility, leaving out theoretical details for learning from the main course book so as not to lose focus on key diagnostic and practical points.
Companion for practical class: Brief and point-wise text in each exercise is richly supported by labelled line-drawings with corresponding specimen photograph and microscopic image for conceptual learning. Thus, the book should become a useful companion in practical class by the students to learn the subject effectively.
Key questions for viva voce: A new feature in the revised edition is addition of a few Key Questions for Viva Voce at the end of each practical exercise. These questions are expected to help the learner in quick revision and rapid self-assessment before their examination and for facing viva voce confidently.
Wish to learn more? For those students desiring to learn more and for making better concepts, the book has a few additional exercises over and above those given in the revised syllabus by the DCI.
6Although the book is primarily prepared as per DCI recommendations given in the revised syllabus in Pathology for second year students of BDS, it is also expected to be useful for practicing clinicians and other students of medicine such as those pursuing course in physiotherapy, pharmacy, nursing, laboratory technology and alternate systems of medicine.
In preparing this book, we have been helped and supported by various friends and colleagues and our family, which is gratefully acknowledged. A word of special thanks is due to Ms Agam Verma, MSc (MLT), Senior Laboratory Technician, for her liberal and skilful technical assistance and her valuable suggestions in chapters on laboratory technology.
We thank profusely the entire staff and team of M/s Jaypee Brothers Medical Publishers (P) Ltd, New Delhi, India, for their ever-smiling support and cooperation in timely completion of the book in order to coincide with the fifth revised edition of Essential Pathology for Dental Students.
Finally, although sincere effort has been made to be as accurate as possible, element of human error is still likely; we shall humbly request users to continue giving their valuable suggestions and feedback directed at further improvements of its contents.
Harsh Mohan MD, FAMS, FICPath, FUICC
Sugandha Mohan BDS, DDS (NYUCD, NY, USA)
7Revised Syllabus in Pathology for BDS Students as per Recommendations of the Dental Council of India
Urine—Abnormal Constituents: Sugar, albumin, ketone bodies.
Urine—Abnormal Constituents: Blood, bile salts, bile pigments.
Haemoglobin (Hb) Estimation
Total WBC Count
Differential WBC Count
Packed Cell Volume (PCV), Erythrocyte Sedimentation Rate (ESR)
Bleeding Time and Clotting Time
Histopathology: Tissue processing, staining.
Histopathology Slides:
8 Following abbreviations have been used throughout this book:
G/A Gross appearance
M/E Microscopic examination