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Endosonography E-Book

Endosonography E-Book

Robert H. Hawes | Paul Fockens | Shyam Varadarajulu

(2018)

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Book Details

Abstract

Covering the full spectrum of endoscopic ultrasound, Endosonography, 4th Edition, by Drs. Robert Hawes, Paul Fockens, and Shyam Varadarajulu, is a comprehensive, one-stop resource for mastering both diagnostic and therapeutic EUS procedures. Leading global authorities guide you step by step through both introductory and advanced techniques, covering everything from interpretation and accurate diagnosis to treatment recommendations. High-quality images and an easy-to-navigate format make this updated reference a must-have for both beginning and experienced endosonographers.

  • Features completed updated content throughout, including new sections on high-intensity focused ultrasound, through-the-needle biopsy, benign pancreatic masses, and gastro-jejunostomy.
  • Includes perspectives from new contributors who provide global experience and knowledge.
  • Contains new and enhanced illustrations that correlate with high-quality endoscopic images.
  • Covers cutting-edge techniques for performing therapeutic interventions, such as drainage of pancreatic pseudocysts and EUS-guided anti-tumor therapy, as well as fine needle aspiration (FNA) procedures.

  • Table of Contents

    Section Title Page Action Price
    Front Cover Cover
    IFC ES1
    ENDOSONOGRAPHY i
    ENDOSONOGRAPHY iii
    Copyright iv
    Dedication v
    Contributors vi
    Acknowledgments x
    Contents xii
    Video Contents xiv
    I - Basics of EndoscopicUltrasonography 1
    1 - Principles of Ultrasound 2
    Basic Ultrasound Physics 2
    Wavelength, Frequency, and Velocity 2
    Density, Compressibility, and Bulk Modulus 2
    Ultrasound Interactions in Tissue 3
    Reflection 3
    Scattering 4
    Absorption 4
    Ultrasound Intensity 4
    Basics of Ultrasound Instrumentation 5
    Transducers 5
    Processors 5
    Transmit/Receive 5
    System Gain and Time Gain Compensation 5
    Signal Processor 5
    Imaging Principles 6
    Resolution 6
    Axial Resolution 6
    Lateral Resolution 6
    Elevation Resolution 6
    A-Mode Scanning 6
    B-Mode Imaging 7
    Doppler 7
    Continuous-Wave Doppler 7
    Pulsed-Wave Doppler 8
    Color Doppler 8
    Power Doppler 8
    Imaging Artifacts 8
    Reverberation 8
    Reflection (Mirror Image) 9
    Acoustic Shadowing 9
    Through Transmission 10
    Tangential Scanning 10
    Side Lobe Artifacts 11
    Endoscopic Ultrasound Elastography 11
    Contrast-Enhanced Harmonic Imaging 12
    High-Intensity Focused Ultrasound 14
    Summary 14
    Key References 14
    References 14
    2 - Equipment 15
    Introduction 15
    Radial Scopes 15
    Linear Scopes 16
    Processors 17
    Endoscopic Ultrasound With Elastography 19
    Miniprobes 19
    Rectal Probes 21
    Accessories 21
    Fine-Needle Aspiration Needles 21
    Fine-Needle Biopsy Needles 22
    Endoscopic Ultrasound-Guided Fiducial Placement 25
    Confocal Laser Endomicroscopy 25
    Radiofrequency Ablation 26
    Endoscopic Ultrasound-Guided Lumen-Apposing Stents 26
    3 - Training and Simulators 29
    Introduction 29
    Training in Endoscopic Ultrasound 30
    Current Status of Endoscopic Ultrasound Training 31
    Guidelines for Competency Assessment 31
    Learning Curves and Competence in Endoscopic Ultrasound 31
    Towards Competency-Based Medical Education 32
    Credentialing, Recredentialing, and Renewal of Privileges in Endoscopic Ultrasound 33
    Endoscopic Ultrasound Training Using Simulators 36
    Quality Metrics in Endoscopic Ultrasound 36
    Future Directions 36
    Conclusions 37
    Key References 38
    References 38
    4 - Indications, Preparation, and Adverse Effects 39
    Indications 39
    Diagnostic Imaging 39
    Tumor Staging 39
    Tissue Acquisition 40
    Therapy 40
    Contraindications 40
    Patient Preparation 40
    General Measures 40
    Laboratory Studies 41
    Medications 41
    Daily Medications 41
    Antithrombotic Drugs 41
    Resuming Antithrombotic Therapy 43
    Prophylactic Antibiotics 43
    Risks and Adverse Effects 44
    Perforation 44
    Bleeding 45
    Infection 45
    Pancreatitis 45
    Other Adverse Effects of EUS and EUS FNA 45
    Therapeutic Endoscopic Ultrasound 45
    Key References 46
    References 46
    5 - New Techniques in EUS: Real-Time Elastography, Contrast-Enhanced EUS, and Fusion Imaging 47
    Real-Time Endoscopic Ultrasound Elastography 47
    Technical Details 47
    Clinical Applications 48
    Lymph Nodes 49
    Pancreatic Masses 50
    Other Applications 51
    Future Techniques 51
    Contrast-Enhanced Endoscopic Ultrasound Elastography 52
    Technical Details 52
    Clinical Applications 52
    Pancreatic Diseases 53
    Other Applications 56
    Future Techniques 56
    Fusion Imaging 57
    Key References 57
    References 57
    II - Mediastinum 58
    6 - How to Perform Endoscopic Ultrasonography in the Esophagus and Mediastinum 59
    Esophagus 59
    Mediastinum 60
    Radial Echoendoscope 60
    Linear Array Echoendoscope 61
    How to Examine the Adrenal Glands 63
    Summary 64
    Key Reference 64
    7 - EUS and EBUS in Non–Small Cell Lung Cancer 65
    Introduction 65
    Endoscopic Ultrasonography-Guided Fine-Needle Aspiration for the Diagnosis and Staging of Lung Cancer 65
    Procedure 65
    Intrapulmonary Tumors (T) and Endoscopic Ultrasonography 66
    Mediastinal Nodal (N) Staging and Endoscopic Ultrasonography 66
    Diagnostic Reach of Endoscopic Ultrasonography 67
    Endoscopic Ultrasonography Versus Endoscopic Ultrasonography–Fine-Needle Aspiration 69
    Accuracy of Mediastinal Staging (N) by Endoscopic Ultrasonography 69
    Distant Metastases (M1) and Endoscopic Ultrasonography 70
    Endoscopic Ultrasound Using the Endobronchial Ultrasound Scope 72
    Endobronchial Ultrasound Procedure 72
    Diagnosing Intrapulmonary Tumors (T) by Endobronchial Ultrasound 72
    Nodal Staging (N) by Endobronchial Ultrasound 73
    Endobronchial Ultrasound Versus Endoscopic Ultrasonography Versus Surgical Staging 75
    Training and Competency 76
    Future Perspectives 76
    Key References 78
    References 78
    8 - Endoscopic Ultrasound in Esophageal and Gastric Cancer 79
    Esophageal Cancer 79
    Background 79
    Esophageal Cancer Staging 79
    Management Pathways in Esophageal Cancer 79
    Staging of Newly Diagnosed Esophageal Cancer 81
    Endoscopic Ultrasound Examination Technique 82
    Scope Selection 82
    Patient Preparation 82
    Obstructing Tumors 82
    TNM Staging 82
    Role of Fine-Needle Aspiration in Staging 85
    Early Esophageal Cancer 87
    High-Frequency Probes 88
    Endoscopic Evaluation 88
    Restaging After Neoadjuvant Therapy 88
    Influence of Endoscopic Ultrasound on Patient Management 89
    Cost-Effectiveness of Endoscopic Ultrasound in Esophageal Cancer 89
    Impact of Endoscopic Ultrasound on Survival 89
    Learning Curve and Procedural Volume 89
    Gastric Cancer 89
    Background 89
    Role of Endoscopic Ultrasound 90
    Gastric Cancer Work-Up (Fig. 8.6) 90
    Gastric Cancer Staging 90
    T Staging 91
    N Staging 92
    M Staging 92
    Management Pathways in Gastric Cancer 92
    Accuracy of Endoscopic Ultrasound for Staging Gastric Cancer 92
    M Staging 93
    Limitations of Endoscopic Ultrasound in Staging 95
    Comparison of Endoscopic Ultrasound With Other Imaging Modalities 95
    Patient Selection for Staging Laparoscopy 96
    Predictor of Survival After Neoadjuvant Chemotherapy 96
    Gastric Cancer: Examination Checklist 96
    Primary Gastric Non-Hodgkin Lymphoma 96
    Diffuse Large B-Cell Lymphoma 96
    Mucosa-Associated Lymphoid Tissue Lymphoma 96
    Role of Endoscopic Ultrasound in MALT Lymphoma 97
    Staging 97
    Accuracy of Endoscopic Ultrasound in Staging MALT Lymphoma 97
    Role of Endoscopic Ultrasound in Predicting Response to Therapy and in Follow-Up 97
    Limitations of Staging Endoscopic Ultrasound 98
    Evaluation of Thickened Gastric Folds 98
    Linitis Plastica 98
    Ménétrier Disease 98
    Large Gastric Folds 98
    Endoscopic Ultrasound–Based Work-Up 99
    References 99
    9 - Endoscopic Ultrasonography in the Evaluation of Posterior Mediastinal Lesions 100
    Endoscopic Ultrasonography Evaluation of Enlarged Posterior Mediastinal Lymph Nodes 100
    Endoscopic Ultrasonography Appearance of Benign Posterior Mediastinal Lymph Nodes 100
    Endoscopic Ultrasonography Appearance of Malignant Posterior Mediastinal Lymph Nodes 100
    Transesophageal Endoscopic Ultrasonography Fine-Needle Aspiration of Mediastinal Lymph Nodes 101
    Technique for Endoscopic Ultrasonography Fine-Needle Aspiration of Posterior Mediastinal Lesions 101
    Endobronchial Ultrasound 102
    Accuracy of Endoscopic Ultrasonography Fine-Needle Aspiration for Diagnosing Posterior Mediastinal Lesions 102
    Risks of Endoscopic Ultrasonography Fine-Needle Aspiration of Posterior Mediastinal Lesions 103
    Endoscopic Ultrasonography Fine-Needle Aspiration Compared With Other Modalities for Evaluation and Biopsy of Posterior Mediasti... 103
    Differential Diagnosis of Enlarged Posterior Mediastinal Lymph Nodes 103
    Malignant Posterior Mediastinal Lymph Nodes 103
    Metastatic Disease From Thoracic Tumors 103
    Lung Cancer 103
    Mesothelioma 104
    Metastatic Disease From Extrathoracic Malignancy 104
    Lymphoma 104
    Benign Posterior Mediastinal Lymph Nodes 104
    Reactive Lymph Nodes 104
    Granulomatous Lymph Nodes 104
    Sarcoid 104
    Histoplasmosis 105
    Tuberculosis 105
    Other Infections 105
    Impact of Endoscopic Ultrasonography Fine-Needle Aspiration of Mediastinal Lymph Nodes on Subsequent Thoracic Surgery Rates 105
    Mediastinal Masses 106
    Malignant Posterior Mediastinal Masses 106
    Neurogenic Tumors 106
    Leiomyoma and Gastrointestinal Stromal Tumors 106
    Mesothelioma 106
    Benign Posterior Mediastinal Masses 107
    Mediastinal Cysts 107
    Drainage of Mediastinal Pseudocysts and Abscesses 107
    Pleural Effusions 108
    Summary 108
    References 108
    III - Stomach 109
    10 - How to Perform Endoscopic Ultrasonography in the Stomach 110
    Summary 111
    11 - Subepithelial Lesions 112
    Comparison of Accuracy Between Endoscopic Ultrasonography and Other Imaging Modalities 112
    Extramural Lesions 113
    Evaluation of Subepithelial Lesions 114
    Gastrointestinal Stromal Tumor 114
    Aberrant Pancreas 116
    Lipoma 118
    Carcinoid Tumor 118
    Granular Cell Tumor 120
    Cysts—Including Duplication Cyst 120
    Varices 122
    Inflammatory Fibroid Polyps 122
    Glomus Tumor 123
    Rare Lesions 123
    Tissue Sampling for Histologic Assessment of Subepithelial Lesions 123
    Management of Subepithelial Lesions 126
    Summary 127
    Key References 127
    References 127
    IV - Pancreas and Biliary Tree 128
    12 - How to Perform Endoscopic Ultrasonography in the Pancreas, Bile Duct, and Liver 129
    Pancreas 129
    Evaluation of the Body and Tail of the Pancreas 129
    Radial Echoendoscopes 129
    Linear Echoendoscopes 131
    Evaluation of the Head and Uncinate Regions of the Pancreas 132
    Head of the Pancreas 132
    Papilla 133
    Uncinate 135
    Bile Duct 137
    Liver 138
    13 - Endoscopic Ultrasound in Inflammatory Diseases of the Pancreas 140
    Introduction 140
    Endoscopic Ultrasound in the Nondiseased Pancreas 140
    Chronic Pancreatitis 140
    Brief Overview 140
    Role of Endoscopic Ultrasound 141
    Endoscopic Ultrasound Imaging Characteristics 141
    Endoscopic Ultrasound Criteria for Chronic Pancreatitis 141
    Comparison of Conventional and Rosemont Classification 144
    Correlation of Endoscopic Ultrasound Findings and Surgical Histopathology 144
    Interobserver Variability 146
    Endoscopic Ultrasound Sampling 146
    Image-Enhancing Techniques in Endoscopic Ultrasound 147
    Endoscopic Ultrasound Elastography 147
    Advanced Endoscopic Ultrasound Techniques 151
    Endoscopic Ultrasound-Guided Celiac Plexus Block 151
    Acute Pancreatitis 151
    Brief Overview 151
    Role of Endoscopic Ultrasound 151
    Acute Biliary Pancreatitis 151
    Acute Idiopathic Pancreatitis 151
    Recurrent Acute Pancreatitis 156
    Endoscopic Ultrasound Imaging Characteristics 156
    Advanced Endoscopic Ultrasound Techniques 159
    Autoimmune Pancreatitis 159
    Brief Overview 159
    Role of Endoscopic Ultrasound 161
    Endoscopic Ultrasound Imaging Characteristics 161
    Endoscopic Ultrasound Sampling 163
    Fine-Needle Aspiration 163
    Tru-Cut Biopsy 168
    Other Endoscopic Ultrasound Fine-Needle Biopsy Techniques 168
    Image-Enhancing Techniques in Endoscopic Ultrasound 169
    Endoscopic Ultrasound Elastography 169
    Contrast-Enhanced Endoscopic Ultrasound 169
    Benign Pancreatic Masses 169
    Brief Overview 169
    Endoscopic Ultrasound Sampling 169
    Endoscopic Ultrasound Fine-Needle Aspiration 169
    Endoscopic Ultrasound-Guided Core Biopsy 169
    Image-Enhancing Techniques in Endoscopic Ultrasound 170
    Endoscopic Ultrasound Elastography 170
    Contrast-Enhanced Endoscopic Ultrasound 170
    Key References 170
    References 170
    14 - Endoscopic Ultrasound and Pancreatic Tumors 171
    Examination Checklist for Evaluation of a Suspected Pancreatic Tumor 171
    Tumor 171
    Vascular Invasion 171
    Lymph Nodes 171
    Liver 171
    Ascites 171
    Endoscopic Ultrasound-Guided Tissue Acquisition 171
    Staging 172
    Pancreatic Ductal Adenocarcinoma 172
    Background 172
    Detection of Pancreatic Ductal Adenocarcinoma 172
    Endoscopic Ultrasound Versus Computed Tomography 172
    Endoscopic Ultrasound Versus Magnetic Resonance Imaging 172
    Contrast-Enhanced Endoscopic Ultrasound 172
    Endoscopic Ultrasound Elastography 172
    Assessment of Resectability and Cancer Staging 172
    Staging 173
    Endoscopic Ultrasound-Guided Fine-Needle Aspiration 176
    Fine-Needle Aspiration Techniques/Accessories for Tissue Acquisition 176
    Specimen Interpretation and Processing 176
    Challenges in Endoscopic Ultrasound-Guided Fine-Needle Aspiration of Pancreatic Mass Lesions 177
    Adverse Events of Fine-Needle Aspiration 177
    Fine-Needle Biopsy 177
    Pancreatic Neuroendocrine Tumor 179
    Background 179
    Diagnosis 180
    Imaging Modalities in Pancreatic Neuroendocrine Tumor 180
    Endoscopic Ultrasound Versus Other Imaging Modalities 181
    Endoscopic Ultrasound-Guided Tissue Acquisition 181
    Endoscopic Ultrasound-Guided Ablation Therapy 181
    Metastatic Lesions to the Pancreas 182
    Pancreatic Lymphoma 183
    Personalized Cancer Therapy 183
    Key References 184
    References 184
    15 - Endoscopic Ultrasonography in the Evaluation of Pancreatic Cysts 185
    Introduction 185
    Types of Pancreatic Cysts 185
    Diagnostic Approach 185
    Clinical History and Imaging 185
    Endoscopic Ultrasound 186
    Confocal Laser Endomicroscopy 188
    Endoscopic Ultrasound-Guided Fine-Needle Aspiration 189
    Analysis of Cyst Fluid 190
    Appearance of the Aspirate and the String Test 190
    Cytology 191
    Protein Markers 191
    Carcinoembryonic Antigen 191
    Cyst Fluid Amylase 191
    Other Markers 191
    Molecular Markers 191
    When to Perform Endoscopic Ultrasound-Guided Fine-Needle Aspiration and What to Send It for 191
    Type of Pancreatic Cysts 192
    Pseudocysts 192
    Serous Cystadenoma 193
    Mucinous Cystic Neoplasm 194
    Intraductal Papillary Mucinous Neoplasia 195
    Solid Pseudopapillary Neoplasm 197
    Cystic Neuroendocrine Tumors 197
    Cystic Ductal Adenocarcinoma 198
    Future Developments 198
    Analysis of Molecular Markers in Pancreatic Juice 198
    Cyst Ablation 199
    Key References 200
    References 200
    16 - Endoscopic Ultrasound in Bile Duct, Gallbladder, and Ampullary Lesions 201
    Endoscopic Ultrasound and Biliary Stones 201
    Bile Duct Stones 201
    Endoscopic Ultrasound Technique for Detecting Choledocholithiasis 201
    The Use of Endoscopic Ultrasound, Magnetic Resonance Cholangiopancreatography, and Endoscopic Retrograde Cholangiopancreatograph... 202
    Summary 206
    Gallstones 206
    Summary 207
    Endoscopic Ultrasound in Bile Duct Strictures 208
    Endoscopic Ultrasound-Fine-Needle Aspiration Considerations in Biliary Strictures and Tumors 208
    The Performance of Intraductal Ultrasonography in Biliary Strictures 210
    Cholangioscopy in Biliary Strictures 212
    Multimodality Approach to Bile Duct Strictures 213
    Staging of Cholangiocarcinoma 214
    Endoscopic Ultrasound in Gallbladder Disease (Excluding Stones) 215
    Gallbladder Polyps 215
    Gallbladder Tumors 216
    Summary 216
    Other Gallbladder Disorders Presenting With Wall Thickening 217
    Summary 218
    Ampullary Tumors 218
    Role of Intraductal Ultrasonography in Ampullary Tumors 223
    Multimodality Approach in the Management of Ampullary Tumors 224
    Summary 224
    References 224
    V - Anorectum 225
    17 - How to Perform Anorectal Endoscopic Ultrasonography 226
    The Perianal Area 226
    The Rectum 226
    Key Reference 228
    18 - Endoscopic Ultrasonography in Rectal Cancer 229
    Relevant Anorectal Anatomy and the American Joint Committee on Cancer 2010 Staging System for Rectal Cancer 229
    Anorectal Anatomy 229
    Rectal Cancer Tumor-Node-Metastasis Staging 230
    Rectal Endoscopic Ultrasonography in the Setting of De Novo Rectal Cancer 231
    T-Staging Considerations 231
    N-Staging Considerations 232
    Magnetic Resonance Imaging Assessment Versus Endoscopic Ultrasonography 233
    Computed Tomography and Positron Emission Tomography-Computed Tomography Evaluation Versus Endoscopic Ultrasonography 233
    Endoscopic Ultrasonography Evaluation Following Neoadjuvant Therapy 234
    Endoscopic Ultrasonography for Recurrent Rectal Cancer Following Radical and Local Surgery 234
    Endoscopic Ultrasonography for Rectal Wall Metastases 234
    Innovative Interventions and Adverse Event Profile for Lower Gastrointestinal Endoscopic Ultrasonography 234
    Translational Medicine 236
    Conclusion 236
    Key References 236
    References 236
    19 - Evaluation of the Anal Sphincter by Anal Endosonography 237
    Introduction 237
    Equipment and Examination Technique 237
    Anal Sphincter Anatomy 238
    Normal Endosonographic Findings 239
    Anal Sphincter Function 240
    Anorectal Physiologic Testing 241
    Manometry 241
    Pudendal Nerve Latency 241
    Electromyography 241
    Sonographic Findings in Anal Incontinence 242
    Obstetric Injury 242
    Idiopathic Internal Anal Sphincter Degeneration and External Anal Sphincter Atrophy 245
    Iatrogenic Sphincter Injury and Anal Trauma 245
    Sonographic Findings in Other Anal Disorders 246
    Recent Developments 247
    Key References 248
    References 248
    VI - Endoscopic Ultrasonography-Guided Tissue Acquisition 249
    20 - How to Perform Endoscopic Ultrasonography-Guided Fine-Needle Aspiration 250
    Introduction 250
    Indications and Contraindications 250
    Steps for Endoscopic Ultrasonography-Fine-Needle Aspiration 251
    Verify the Indication 251
    Localize the Lesion and Position the Echoendoscope 251
    Choose the Correct Needle 252
    Insert the Endoscopic Ultrasonography-Fine-Needle Aspiration Needle Into the Echoendoscope 252
    Position the Lesion in the Needle Path 252
    Puncture the Lesion and Move the Needle Within the Lesion 255
    Withdraw the Needle and Process the Aspirate 256
    Prepare the Needle for Subsequent Passes 256
    Evolving Trends in Endoscopic Ultrasonography-Fine-Needle Aspiration 256
    Use of the Stylet 256
    Use of Suction 256
    Sampling Techniques 257
    Fine-Needle Aspiration Particularities According to Site 257
    Esophagus 257
    Stomach 258
    Duodenal Bulb 258
    Duodenal Sweep (D2) 258
    Special Issues 258
    Sampling of Multiple Lesions 258
    Endoscopic Ultrasonography-Fine-Needle Aspiration of Cystic Lesions 259
    Mobile Lesions 259
    Indurated Lesions 259
    Tumor Seeding 259
    Conclusion 259
    Key References 260
    References 260
    21 - Techniques for Endoscopic Ultrasound-Guided Fine-Needle Biopsy 261
    Introduction 261
    Endoscopic Ultrasound-Guided Tru-Cut Biopsy 261
    Endoscopic Ultrasound-Guided Fine-Needle Biopsy Using a Standard 22-Gauge Needle 262
    Background 262
    Design and Technique 262
    Results 262
    Endoscopic Ultrasound Fine-Needle Biopsy Using a Standard 19-Gauge Needle 263
    Background 263
    Endoscopic Ultrasound-Guided Fine-Needle Biopsy Technique 263
    Results 263
    Endoscopic Ultrasound-Guided Fine-Needle Biopsy Using ProCore Needles 264
    Introduction 264
    Design and Technique 264
    Results 266
    Endoscopic Ultrasound-Guided Fine-Needle Biopsy Using the Sharkcore and the Acquire Needles 267
    Design and Technique 267
    Results 267
    Conclusions and Future Perspective 270
    Key References 271
    References 271
    22 - Cytology Primer for Endosonographers 272
    Technical Aspects of Endoscopic Ultrasonography That Improve Diagnostic Yield 272
    Preliminary Planning 272
    Fine-Needle Aspirates 273
    Choice of Needles 274
    Needle Core Biopsy Versus Fine-Needle Aspiration 274
    To Apply or Not to Apply Suction 275
    Number of Passes 275
    Immediate Cytologic Evaluation 275
    Factors Associated With Improved Cytologic Preparation 276
    Cytology Smears and Cell Block 276
    Air-Dried or Alcohol-Fixed Smears 277
    Transport Media and Liquid-Based Preparations 277
    Cytology Interpretation 277
    Adequacy 277
    Diagnostic Evaluation of the Slide 277
    Endoscopic Ultrasonography Fine-Needle Aspiration of Specific Sites 279
    Pancreas 279
    Global Approach to Diagnosis 279
    Pancreatic Adenocarcinoma and Chronic Pancreatitis 279
    Pancreatic Neuroendocrine Tumors 283
    Major Differential Diagnosis 283
    Cystic Pancreatic Lesions 283
    Causes of False Diagnosis 285
    Lymph Nodes 286
    Sample Collection 286
    Algorithmic Approach to Interpretation of Lymph Node Aspirates 286
    How to Confirm Lymph Nodes 287
    Differential Diagnosis 287
    Monomorphous Lymphoid Population 287
    Nonhematopoietic Cells in Background of Lymphoid Cells 288
    Nonhematopoietic Cells Without the Background of Lymphoid Cells 288
    Spleen 288
    Gastrointestinal Tract 288
    Detection of Foregut Cysts 289
    Gastrointestinal Stromal Tumors 289
    Hepatobiliary Tree 289
    Liver 289
    Adrenal Glands 289
    Summary 290
    Key References 290
    References 290
    23 - Endoscopic Ultrasound-Guided Drainage of Pancreatic Fluid Collections 291
    Definitions 291
    Indications for Intervention 291
    Types of Interventions 291
    Walled-Off Necrosis 292
    Percutaneous Drainage 292
    Endoscopic-Ultrasonography-Guided Drainage 293
    Preprocedure Checklist 293
    Cautions Prior to Endoscopic Ultrasonography-Guided Pancreatic Fluid Collection Drainage 293
    Procedure Techniques 294
    Endoscopic Necrosectomy 297
    Adverse Events 297
    Follow-Up 298
    Disconnected Pancreatic Duct Syndrome 299
    Summary 299
    Key References 301
    References 301
    24 - Endoscopic Ultrasonography-Guided Drainage of the Biliary-Pancreatic Ductal Systems and Gallbladder 302
    Introduction 302
    Endoscopic Ultrasonography-Guided Biliary Drainage 302
    Nomenclature 302
    Indications of Endoscopic Ultrasonography-Guided Biliary Drainage 303
    Outcomes of the Endoscopic Ultrasonography-Guided Biliary Drainage Procedures 303
    Endoscopic Ultrasonography-Rendezvous Endoscopic Retrograde Cholangiopancreatography (Biliary) 303
    Endoscopic Ultrasonography-Guided Antegrade Stenting 304
    Endoscopic Ultrasonography-Guided Choledochoduo 304
    Comparison of Endoscopic Ultrasonography-Guided Biliary Drainage With Percutaneous Transhepatic Biliary Drainage 306
    Pros and Cons of Each Procedure 306
    Algorithm for Drainage and Choice of Procedure 307
    Endoscopic Ultrasonography-Guided Pancreatic Duct Drainage 307
    Indications for Endoscopic Ultrasonography-Guided Pancreatic Duct Drainage 307
    Nomenclature 308
    Outcomes of Endoscopic Ultrasonography-Guided Pancreatic Duct Drainage Procedures 308
    Algorithm for Endoscopic Ultrasonography-Guided Pancreatic Duct Drainage Procedures 309
    Endoscopic Ultrasonography-Guided Gallbladder Drainage 309
    Indications for Endoscopic Ultrasonography-Guided Transmural Gallbladder Drainage 309
    Outcomes of Endoscopic Ultrasonography-Guided Transmural Gallbladder Drainage 309
    Comparison Between Endoscopic Ultrasonography-Guided Transmural Gallbladder Drainage and Percutaneous Cholecystostomy 309
    Techniques Used in Endoscopic Ultrasonography-Guided Drainage Procedures 310
    Procedural Considerations and Equipment 310
    Patient Preparation 310
    Echoendoscope 310
    Needles and Guidewires 310
    Tract Dilation 310
    Stents 310
    Technique of Endoscopic Ultrasonography-Rendezvous (Biliary) 311
    Considerations 311
    Site of Needle Puncture 311
    The Procedure (Fig. 24.6 and Video 24.1) 311
    Troubleshooting 312
    Technique of Endoscopic Ultrasonography-Guided Antegrade Biliary 312
    Considerations 312
    The Procedure (Fig. 24.7 and Video 24.2) 312
    Index 341
    A 341
    B 342
    C 343
    D 344
    E 344
    F 347
    G 348
    H 348
    I 348
    J 349
    K 349
    L 349
    M 349
    N 350
    O 351
    P 351
    R 353
    S 354
    T 355
    U 356
    V 356
    W 356
    X 356
    Z 356
    IBC ES2