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Handbook of Small Animal Radiological Differential Diagnosis E-Book

Handbook of Small Animal Radiological Differential Diagnosis E-Book

Ruth Dennis | Robert M. Kirberger | Frances Barr | Robert H. Wrigley

(2010)

Additional Information

Abstract

The Handbook of Small Animal Radiology and Ultrasound: Techniques and Differential Diagnoses provides a user-friendly reference for a wide range of radiographic and ultrasonographic findings in dogs and cats.

Key features

  • Enables successful and clear interpretation of radiographs and ultrasonograms
  • Offers clearly sequenced text arrangement from the identification of the radiographic or sonographic abnormalities to a list of subsequent considerations for each sign
  • Prioritizes different clinical findings to tailor further diagnostic tests or therapeutic interventions
  • Takes imaging abnormalities from the descriptive to the interpretative

New to this edition

  • Colour throughout enhances user-friendliness
  • Many new conditions
  • Extra illustrations show techniques and normal anatomy
  • Additional information on techniques, normal appearance and disease processes
  • Expanded Further Reading sections

This book is intended for all users of small animal diagnostic imaging, from radiologists through to general practitioners to veterinary students, and will be an invaluable supplement to existing references in the subject.


Table of Contents

Section Title Page Action Price
Front Cover Cover
Handbook of Small Animal Radiology and Ultrasound iii
Copyright Page iv
Contents v
Foreword vii
Preface ix
Acknowledgements xi
Chapter 1: Skeletal system: general 1
General 1
1.1 Radiographic technique for the skeletal system 1
1.2 Anatomy of bone: general principles 2
1.3 Ossification and growth plate closures 3
1.4 Response of bone to disease or injury 3
1.5 Patterns of focal bone loss (osteolysis) 4
1.6 Patterns of osteogenesis: periosteal reactions 6
1.7 Principles of interpretation of skeletal radiographs 7
1.8 Features of aggressive versus non-aggressive bone lesions 8
1.9 Fractures: radiography, classification and assessment of healing 9
Bones 14
1.10 Altered shape of long bones 14
1.11 Dwarfism 15
1.12 Delayed ossification or growth plate closure 15
1.13 Increased radiopacity within bone 16
1.14 Periosteal reactions 18
1.15 Bony masses 19
1.16 Osteopenia 21
1.17 Coarse trabecular pattern 22
1.18 Osteolytic lesions 22
1.19 Expansile osteolytic lesions 24
1.20 Mixed osteolytic–osteogenic lesions 25
1.21 Multifocal diseases 28
1.22 Lesions affecting epiphyses 29
1.23 Lesions affecting physes 30
1.24 Lesions affecting metaphyses 31
1.25 Lesions affecting diaphyses 33
Further reading 35
Chapter 2: Joints 39
2.1 Radiography of joints: technique and interpretation 39
2.2 Soft tissue changes associated with joints 41
2.3 Altered width of joint space 42
2.4 Osteolytic (erosive) joint disease 42
2.5 Proliferative joint disease 44
2.6 Mixed osteolytic–proliferative joint disease 45
2.7 Conditions that may affect more than one joint 45
2.8 Mineralization in or near join 46
Further reading 48
Chapter 3: Appendicular skeleton 51
3.1 Scapula 52
3.2 Shoulder 53
3.3 Humerus 55
3.4 Elbow 55
3.5 Radius and ulna (antebrachium, forearm) 60
3.6 Carpus 63
3.7 Metacarpus, metatarsus and phalanges 65
3.8 Pelvis and sacroiliac joint 67
3.9 Hip (coxofemoral joint) 68
3.10 Femur 71
3.11 Stifle 71
3.12 Tibia and fibula 77
3.13 Tarsus (hock) 77
Further reading 80
Chapter 4: Head and neck 85
4.1 Radiographic technique for the skull 86
4.2 Breed and conformational variations of the skull and pharynx 87
Cranial Cavity 88
4.3 Variations in shape of the cranial cavity 88
4.4 Variations in shape of the foramen magnum 88
4.5 Variations in radiopacity of the cranium 88
4.6 Variations in thickness of the calvarial bones; calvarial masses 89
4.7 Ultrasonography of the brain 90
Maxilla and Premaxilla 90
4.8 Maxillary and premaxillary bony proliferation or sclerosis 90
4.9 Maxillary and premaxillary bony destruction or rarefaction 91
4.10 Mixed proliferative–osteolytic maxillary and premaxillary lesions 92
Mandible 92
4.11 Mandibular bony proliferation or sclerosis 92
4.12 Mandibular bony destruction orra refaction 92
4.13 Mandibular fracture 93
4.14 Mixed proliferative–osteolytic mandibular lesions 93
Temporomandibular Joint 93
4.15 Temporomandibular joint not clearly seen 94
4.16 Abnormalities of the temporomandibular joint 94
Ear 95
4.17 Abnormalities of the external ear canal 95
4.18 Variations in the wall of the tympanic bulla 96
4.19 Increased radiopacity of the tympanic bulla 96
4.20 Ultrasonography of the tympanic bulla 97
Nasal Cavity 97
4.21 Variations in shape of the nasal cavity 97
4.22 Increased radiopacity of the nasal cavity 97
4.23 Decreased radiopacity of the nasal cavity 99
Frontal Sinuses 99
4.24 Variations in shape of the frontal sinuses 100
4.25 Increased radiopacity of the frontal sinuses 100
4.26 Variations in thickness of the frontal bones 100
Teeth 101
4.27 Variations in the number of teeth 101
4.28 Variations in the shape of teeth 102
4.29 Variations in structure or radiopacity of the teeth 102
4.30 Periodontal radiolucency 102
4.31 Displacement or abnormal location of teeth 102
Pharynx and Larynx 103
4.32 Variations in the pharynx 103
4.33 Variations in the larynx 104
4.34 Ultrasonography of the larynx 104
4.35 Changes in the hyoid apparatus 105
Soft Tissues of The Head and Neck 105
4.36 Thickening of the soft tissues of the head and neck 105
4.37 Variations in radiopacity of the soft tissues of the head and neck 105
4.38 Contrast studies of the nasolacrimal duct (dacryocystorhinography) 106
4.39 Ultrasonography of the eye and orbit 106
4.40 Contrast studies of the salivary ducts and glands (sialography) 109
4.41 Ultrasonography of the salivary glands 109
4.42 Ultrasonography of the thyroid and parathyroid glands 110
4.43 Ultrasonography of the carotid artery and jugular vein 110
4.44 Ultrasonography of lymph nodes of the head and neck 110
4.45 Cervical oesophagus 111
4.46 Nasal dermoid sinus cyst 111
Further reading 111
Chapter 5: Spine 115
5.1 Radiographic technique for the spine 115
5.2 Variations in vertebral number 116
5.3 Variations in vertebral size and shape: congenital or developmental 117
5.4 Variations in vertebral size and shape: acquired 119
5.5 Variations in vertebral alignment 122
5.6 Diffuse changes in vertebral opacity 124
5.7 Localized changes in vertebral opacity 124
5.8 Abnormalities of the intervertebral disc space 126
5.9 Irregularity of the vertebral endplates 127
5.10 Abnormalities of the intervertebral foramen 128
5.11 Abnormalities of the articular facets 129
5.12 Lesions in the paravertebral soft tissues 130
5.13 Ultrasonography of paravertebral soft tissues 130
5.14 Spinal contrast studies: technique and normal appearance 131
5.15 Technical errors during myelography 133
5.16 Extradural spinal cord compression on myelography 134
5.17 Intradural–extramedullary spinal cord compression on myelography 137
5.18 Intramedullary spinal cord enlargement on myelography 138
5.19 Miscellaneous myelographic findings 139
5.20 Changes on plain radiographs that are unlikely to be significant 140
5.21 Neurological deficits involving the spinal cord or proximal nerve roots with normal plain radiographs and myelogram 140
Further reading 141
Chapter 6: Lower respiratory tract 145
6.1. Radiographic Technique for the Thorax and Effect of Positioning 145
6.2. Ultrasonographic Technique for the Thorax 146
6.3. Poor Intrathoracic Ultrasonographic Visualization 147
6.4. Thoracic Radiological Changes Associated with Ageing 147
6.5. Border Effacement in the Thorax 148
6.6. Tracheal Displacement 148
6.7. Tracheal Diameter Variations 150
6.8. Tracheal Lumen Opacification 151
6.9. Tracheal Wall Visibility Variations 151
6.10. Tracheal Ultrasonography 152
6.11. Changes of the Main Stem (Principal) Bronchi 152
6.12. Bronchial Lung Pattern 153
Increased bronchial wall visibility 153
Bronchial dilation 154
Bronchial lumen opacification 154
6.13. Artefactual Increase in Lung Opacity 154
6.14. Alveolar Lung Pattern 154
6.15. Poorly Marginated Pulmonary Opacities or Areas of Consolidation 157
6.16. Ultrasonography of Areas of Alveolar Filling 159
6.17. Single Radiopaque Lung Lobe 159
6.18. Ultrasonography of Consolidated Lung Lobes 160
6.19. Solitary Pulmonary Nodules or Masses 160
6.20. Nodular Lung Pattern 161
6.21. Ultrasonography of Pulmonary Nodules or Masses 163
6.22. Interstitial Lung Pattern 163
6.23. Vascular Lung Pattern 165
6.24. Mixed Lung Pattern 167
6.25. Generalized Pulmonary Hyperlucency 168
6.26. Focal Areas Of Pulmonary Hyperlucency (Including Cavitary Lesions) 169
6.27. Intrathoracic Mineralized Opacities 170
6.28. Hilar Masses 171
6.29. Increased Visibility of Lung or Lobar Edges 171
6.30. Lower Respiratory Tract Clinical Signs But Normal Radiographs 171
Chapter 7: Cardiovascular system 175
7.1 Normal radiographic appearance of the heart 175
7.2 Normal cardiac silhouette with cardiac pathology 176
7.3 Cardiac malposition 177
7.4 Reduction in heart size: microcardia 178
7.5 Generalized enlargement of the cardiac silhouette 178
7.6 Pericardial disease 179
7.7 Ultrasonography of pericardial disease 181
7.8 Left atrial enlargement 181
7.9 Left ventricular enlargement 182
7.10 Aortic abnormalities 183
7.11 Right atrial enlargement 184
7.12 Right ventricular enlargement 185
7.13 Pulmonary artery trunk abnormalities 186
7.14 Changes in pulmonary arteries and veins 186
7.15 Caudal vena cava abnormalities 186
7.16 Cardiac neoplasia 187
Angiography 188
7.17 Angiography: left heart 188
7.18 Angiography: right heart 189
Cardiac Ultrasonography 189
7.19 Two-dimensional and M-mode echocardiography: left heart 189
7.20 Two-dimensional and M-mode echocardiography: right heart 192
7.21 Contrast echocardiography: right heart 194
7.22 Doppler flow abnormalities: mitral valve 194
7.23 Doppler flow abnormalities: aortic valve 195
7.24 Doppler flow abnormalities: tricuspid valve 195
7.25 Doppler flow abnormalities: pulmonic valve 196
Further reading 197
Chapter 8: Other thoracic structures: pleural cavity, mediastinum, thoracic oesophagus, thoracic wall 199
Pleural Cavity 199
8.1 Anatomy and radiography of the pleural cavity 199
8.2 Increased radiolucency of the pleural cavity 200
8.3 Increased radiopacity of the pleural cavity 202
8.4 Pleural and extrapleural nodules and masses 204
8.5 Ultrasonography of pleural and extrapleural lesions 205
8.6 Pleural thickening: increased visibility of lung lobe edges 205
Mediastinum 206
8.7 Anatomy and radiography of the mediastinum 206
8.8 Mediastinal shift 207
8.9 Variations in mediastinal radiopacity 208
8.10 Mediastinal widening 209
8.11 Mediastinal masses 210
8.12 Mediastinal lymphadenopathy 212
8.13 Ultrasonography of the mediastinum 212
Thoracic Oesophagus 213
8.14 Normal radiographic appearance of the thoracic oesophagus 213
8.15 Oesophageal contrast studies: technique and normal appearance 214
8.16 Abnormalities on oesophageal contrast studies 214
8.17 Oesophageal dilation 215
8.18 Variations in radiopacity of the oesophagus 217
8.19 Oesophageal masses 217
8.20 Oesophageal foreign bodies 218
Thoracic Wall 219
8.21 Variations in soft tissue components of the thoracic wall 219
8.22 Variations in the ribs 220
8.23 Variations in the sternum 221
8.24 Variations in thoracic vertebrae 222
8.25 Ultrasonography of the thoracic wall 222
8.26 Variations in the appearance of thediaphragm 222
8.27 Ultrasonography of the diaphragm 224
Miscellaneous 225
8.28 Thoracic trauma 225
8.29 Ultrasonography of thoracic trauma 225
Further reading 226
Chapter 9: Other abdominal structures: abdominal wall, peritoneal and retroperitoneal cavities, parenchymal organs 229
9.1 Radiographic technique for the abdomen and effect of positioning 230
9.2 Ultrasonographic technique for the abdomen 231
Abdominal Wall 232
9.3 Variations in shape of the abdominal wall 232
9.4 Variations in radiopacity of the abdominal wall 233
9.5 Ultrasonography of the abdominal wall 233
Peritoneal Cavity 233
9.6 Increased radiopacity of the peritoneal cavity and/or loss of visualization of abdominal organs 233
9.7 Decreased radiopacity of the peritoneal cavity 235
9.8 Ultrasonography of the peritoneal cavity 235
Retroperitoneal Space 236
9.9 Enlargement of the retroperitoneal space 236
9.10 Increased radiopacity of the retroperitoneal space and/or loss of visualization of the retroperitoneal structures 237
9.11 Decreased radiopacity of the retroperitoneal space 238
9.12 Ultrasonography of the retroperitoneal space 238
9.13 Ultrasonography of the lymph nodes in the retroperitoneal space 238
9.14 Ultrasonography of the abdominal aorta and caudal vena cava 238
Liver 239
9.15 Displacement of the liver 239
9.16 Variations in liver size 239
9.17 Variations in liver shape 241
9.18 Variations in liver radio 242
9.19 Hepatic contrast studies 242
9.20 Ultrasonographic technique for the liver 245
9.21 Normal ultrasonographic appearance of the liver 245
9.22 Ultrasonographic abnormalities of the hepatic parenchyma 245
9.23 Ultrasonographic abnormalities of the biliary tract 247
9.24 Ultrasonographic abnormalities of the hepatic vascular system 247
Spleen 248
9.25 Absence of the splenic shadow 248
9.26 Variations in location of the spleen 248
9.27 Variations in splenic size and shape 249
9.28 Variations in splenic radiopacity 250
9.29 Ultrasonographic technique for the spleen 250
9.30 Normal ultrasonographic appearance of the spleen 250
9.31 Ultrasonographic abnormalities of the spleen 250
Pancreas 252
9.32 Pancreatic radiology 252
9.33 Ultrasonographic technique for the pancreas 252
9.34 Normal ultrasonographic appearance of the pancreas 252
9.35 Ultrasonographic abnormalities of the pancreas 253
Adrenal Glands 253
9.36 Adrenal gland radiology 253
9.37 Ultrasonography of the adrenal glands 254
Abdominal Masses 255
9.38 Cranial abdominal masses (largely within the costal arch) 255
9.39 Mid-abdominal masses 257
9.40 Caudal abdominal masses 259
Miscellaneous 260
9.41 Mineralization on abdominal radiographs 260
Further reading 262
Chapter 10: Gastrointestinal tract 267
Stomach 268
10.1 Normal radiographic appearance of the stomach 268
10.2 Displacement of the stomach 269
10.3 Variations in stomach size 269
10.4 Variations in stomach contents 270
10.5 Variations in the stomach wall 271
10.6 Gastric contrast studies: technique and normal appearance 272
10.7 Technical errors on the gastrogram 273
10.8 Gastric luminal filling defects on contrast studies 273
10.9 Abnormal gastric mucosal pattern on contrast studies 274
10.10 Variations in gastric emptying time 274
10.11 Ultrasonographic technique for the stomach 275
10.12 Normal ultrasonographic appearance of the stomach 276
10.13 Variations in gastric contents on ultrasonography 276
10.14 Lack of visualization of the normal gastric wall layered architecture on ultrasonography 277
10.15 Focal thickening of the gastric wall on ultrasonography 277
10.16 Diffuse thickening of the gastric wall on ultrasonography 277
Small Intestine 277
10.17 Normal radiographic appearance of the small intestine 277
10.18 Variations in the number of small intestinal loops visible 278
10.19 Displacement of the small intestine 278
10.20 Bunching of small intestinal loops 278
10.21 Increased width of small intestinal loops 279
10.22 Variations in small intestinal contents 280
10.23 Small intestinal contrast studies: technique and normal appearance 282
10.24 Technical errors with small intestinal contrast studies 282
10.25 Variations in small intestinal luminal diameter on contrast studies 283
10.26 Small intestinal luminal filling defects on contrast studies 283
10.27 Variations in the small intestinal wall on contrast studies 283
10.28 Variations in small intestinal transit time on contrast studies 284
10.29 Ultrasonographic technique for the small intestine 285
10.30 Normal ultrasonographic appearance of the small intestine 285
10.31 Variations in small intestinal contents on ultrasonography 285
10.32 Dilation of the small intestinal lumen on ultrasonography 285
10.33 Lack of visualization of the normal small intestinal wall layered architecture on ultrasonography 285
10.34 Abnormal arrangement of the small intestine on ultrasonography 286
10.35 Focal thickening of the small intestinal wall on ultrasonography 286
10.36 Diffuse thickening of the small intestinal wall on ultrasonography 287
10.37 Mucosal layer alterations of the small intestine 287
Large Intestine 287
10.38 Normal radiographic appearance of the large intestine 287
10.39 Displacement of the large intestine 288
10.40 Large intestinal dilation 289
10.41 Variations in large intestinal contents 289
10.42 Variations in large intestinal wall opacity 290
10.43 Large intestinal contrast studies: technique and normal appearance 290
10.44 Technical errors with large intestinal contrast studies 291
10.45 Large intestinal luminal filling defects on contrast studies 291
10.46 Increased large intestinal wall thickness on contrast studies 291
10.47 Abnormal large intestinal mucosal pattern on contrast studies 291
10.48 Ultrasonographic technique for the large intestine 292
10.49 Normal ultrasonographic appearance of the large intestine 292
10.50 Ultrasonographic changes in large intestinal disease 292
Further reading 292
Chapter 11: Urogenital tract 297
Urinary tract 298
Kidneys 298
11.1 Non-visualization of the kidneys 299
11.2 Variations in kidney size and shape 299
11.3 Variations in kidney radiopacity 300
11.4 Variations in kidney location 301
11.5 Upper urinary tract contrast studies: technique and normal appearance 301
11.6 Absent nephrogram 303
11.7 Abnormal timing of the nephrogram 303
11.8 Uneven radiopacity of the nephrogram 303
11.9 Abnormalities of the pyelogram 304
11.10 Ultrasonographic examination of the kidneys 305
11.11 Normal ultrasonographic appearance of the kidneys 305
11.12 Abnormalities of the renal pelvis on ultrasonography 306
11.13 Focal parenchymal abnormalities of the kidney on ultrasonography 306
11.14 Diffuse parenchymal abnormalities of the kidney on ultrasonography 307
11.15 Perirenal abnormalities on ultrasonography 307
Ureters 308
11.16 Dilated ureter 309
11.17 Normal ultrasonographic appearance of the ureters 309
11.18 Dilation of the ureter on ultrasonography 310
Urinary Bladder 310
11.19 Non-visualization of the urinary bladder 310
11.20 Displacement of the urinary bladder 310
11.21 Variations in urinary bladder size 311
11.22 Variations in urinary bladder shape 311
11.23 Variations in urinary bladder radiopacity 311
11.24 Urinary bladder contrast studies: technique and normal appearance 312
11.25 Reflux of contrast medium up a ureter following cystography 313
11.26 Abnormal bladder lumen on cystography 313
11.27 Thickening of the urinary bladder wall on cystography 314
11.28 Ultrasonographic examination of the bladder 315
11.29 Normal ultrasonographic appearance of the bladder 315
11.30 Thickening of the bladder wall on ultrasonography 315
11.31 Changes in echogenicity of the bladder wall 316
11.32 Cystic structures within or near the bladder wall on ultrasonography 316
11.33 Changes in urinary bladder contents on ultrasonography 316
Urethra and Vagina 317
11.34 Urethral and vaginal contrast studies: technique and normal appearance 317
11.35 Abnormalities of the (vagino)urethrogram 318
11.36 Ultrasonography of the urethra and vagina 319
Female genital tract 319
Ovaries 319
11.37 Ovarian enlargement 320
11.38 Ultrasonographic examination of the ovaries 320
11.39 Normal ultrasonographic appearance of the ovary 320
11.40 Ovarian abnormalities on ultrasonography 320
Uterus 320
11.41 Uterine enlargement 320
11.42 Variations in uterine radiopacity 321
11.43 Radiographic signs of dystocia and fetal death 321
11.44 Ultrasonographic examination of the uterus 322
11.45 Normal ultrasonographic appearance of the uterus 322
11.46 Variation in uterine contents on ultrasonography 322
11.47 Thickening of the uterine wall on ultrasonography 322
Male genital tract 322
Prostate 322
11.48 Variations in location of the prostate 323
11.49 Variations in prostatic size 323
11.50 Variations in prostatic shape and outline 324
11.51 Variations in prostatic radiopacity 324
11.52 Ultrasonographic examination of the prostate 324
11.53 Normal ultrasonographic appearance of the prostate 324
11.54 Focal parenchymal changes of the prostate on ultrasonography 325
11.55 Diffuse parenchymal changes of the prostate on ultrasonography 325
11.56 Paraprostatic lesions on ultrasonography 325
Testes 325
11.57 Ultrasonographic examination of the testes 325
11.58 Normal ultrasonographic appearance of the testes 326
11.59 Testicular abnormalities on ultrasonography 326
11.60 Paratesticular abnormalities on ultrasonography 326
Further reading 326
Chapter 12: Soft tissues 331
12.1 Variations in thickness of soft tissues 331
12.2 Variations in radiopacity of soft tissues 332
12.3 Contrast studies of sinus tracts and fistulae (sinography, fistulography) 334
12.4 Contrast studies of the lymphatic system (lymphography, lymphangiography) 334
12.5 Contrast studies of peripheral arteries and veins (angiography, arteriography, venography) 335
12.6 Ultrasonography of soft tissues 336
12.7 Ultrasonography of muscles, tendons and nerves 337
12.8 Ultrasonography of superficial lymph nodes 338
Further reading 338
Appendix 341
Radiographic Faults 341
Ultrasound Terminology and Artefacts 343
Geographic Distributions of Diseases 347
Further reading 350
Index 353