Highly practical and user-friendly, ExpertDDx: Abdomen and Pelvis, third edition, helps you reach accurate, clinically useful differential diagnoses in your everyday practice. It presents the most useful differential diagnoses for each region of the abdomen and pelvis, grouped according to anatomic location, generic imaging findings, modality-specific findings, or clinical-based indications. Each differential diagnosis includes several high-quality, succinctly annotated images; a list of diagnostic possibilities sorted as common, less common, and rare but important; and brief, bulleted text offering helpful diagnostic clues. It’s an excellent resource for subspecialty abdominal imagers as well as general radiologists and trainees, providing invaluable assistance in reaching logical, on-target differential diagnoses based on key imaging findings and clinical details.
Covers 175 of the most common diagnostic challenges in abdominal and pelvic imaging, enhanced by more than 2,100 radiologic images, full-color illustrations, clinical and histologic photographs, and gross pathology images
Provides a quick review of the salient features of each entity, differentiating features from other similar-appearing abnormalities
Includes new chapters on hematuria, flank pain, acute scrotal pain, and seminal vesicle
Adds greater focus to advancing prostate imaging methods with expanded content on lesions in the peripheral zone and lesions in the transition zone, as well as new coverage of transplant imaging
Contains updates to numerous classifications, including LI-RADS for liver, O-RADS for ovarian masses, and the Tanaka classification for pancreatic cysts
Features new MR examples and MR-specific diagnoses throughout, plus new differentials for contrast-enhanced ultrasound findings related to liver and kidney lesions
1. Cover image - p. Cover 2. Title page - p. ii 3. Table of Contents - p. iii 4. Copyright - p. iii 5. Dedications - p. iii 6. Contributing Authors - p. v 7. Preface - p. v 8. Acknowledgments - p. ix 9. Sections - p. xi 10. TABLE OF CONTENTS - p. xiii 11. SECTION 1: PERITONEUM AND MESENTERY - p. xiii 12. GENERIC IMAGING PATTERNS - p. xiii 13. Chapter 1: Mesenteric or Omental Mass (Solid) - p. xiii 14. Chapter 2: Mesenteric or Omental Mass (Cystic) - p. 9 15. Chapter 3: Fat-Containing Lesion, Peritoneal Cavity - p. 13 16. Chapter 4: Mesenteric Lymphadenopathy - p. 17 17. Chapter 5: Abdominal Calcifications - p. 21 18. Chapter 6: Pneumoperitoneum - p. 27 19. Chapter 7: Hemoperitoneum - p. 31 20. Chapter 8: Misty (Infiltrated) Mesentery - p. 35 21. MODALITY-SPECIFIC IMAGING FINDINGS - p. 41 22. COMPUTED TOMOGRAPHY - p. 41 23. Chapter 9: High-Attenuation (Hyperdense) Ascites - p. 41 24. SECTION 2: ABDOMINAL WALL - p. 45 25. ANATOMICALLY BASED DIFFERENTIALS - p. 45 26. Chapter 10: Abdominal Wall Mass - p. 45 27. Chapter 11: Mass in Iliopsoas Compartment - p. 51 28. Chapter 12: Groin Mass - p. 53 29. Chapter 13: Elevated or Deformed Hemidiaphragm - p. 57 30. Chapter 14: Defect in Abdominal Wall (Hernia) - p. 59 31. SECTION 3: ESOPHAGUS - p. 63 32. GENERIC IMAGING PATTERNS - p. 63 33. Chapter 15: Intraluminal Mass, Esophagus - p. 63 34. Chapter 16: Extrinsic Mass, Esophagus - p. 67 35. Chapter 17: Lesion at Pharyngoesophageal Junction - p. 71 36. Chapter 18: Esophageal Ulceration - p. 73 37. Chapter 19: Mucosal Nodularity, Esophagus - p. 75 38. Chapter 20: Esophageal Strictures - p. 77 39. Chapter 21: Dilated Esophagus - p. 79 40. Chapter 22: Esophageal Outpouchings (Diverticula) - p. 81 41. Chapter 23: Esophageal Dysmotility - p. 83 42. CLINICALLY BASED DIFFERENTIALS - p. 85 43. Chapter 24: Odynophagia - p. 85 44. SECTION 4: STOMACH - p. 87 45. GENERIC IMAGING PATTERNS - p. 87 46. Chapter 25: Gastric Mass Lesions - p. 87 47. Chapter 26: Intramural Mass, Stomach - p. 95 48. Chapter 27: Target or Bull's-Eye Lesions, Stomach - p. 97 49. Chapter 28: Gastric Ulceration (Without Mass) - p. 99 50. Chapter 29: Intrathoracic Stomach - p. 101 51. Chapter 30: Thickened Gastric Folds - p. 103 52. Chapter 31: Gastric Dilation or Outlet Obstruction - p. 109 53. Chapter 32: Linitis Plastica, Limited Distensibility - p. 113 54. CLINICALLY BASED DIFFERENTIALS - p. 117 55. Chapter 33: Epigastric Pain - p. 117 56. Chapter 34: Left Upper Quadrant Mass - p. 123 57. SECTION 5: DUODENUM - p. 127 58. GENERIC IMAGING PATTERNS - p. 127 59. Chapter 35: Duodenal Mass - p. 127 60. Chapter 36: Dilated Duodenum - p. 135 61. Chapter 37: Thickened Duodenal Folds - p. 137 62. SECTION 6: SMALL INTESTINE - p. 139 63. GENERIC IMAGING PATTERNS - p. 139 64. Chapter 38: Multiple Masses or Filling Defects, Small Bowel - p. 139 65. Chapter 39: Cluster of Dilated Small Bowel - p. 143 66. Chapter 40: Aneurysmal Dilation of Small Bowel Lumen - p. 145 67. Chapter 41: Stenosis, Terminal Ileum - p. 147 68. Chapter 42: Segmental or Diffuse Small Bowel Wall Thickening - p. 149 69. Chapter 43: Pneumatosis of Small Intestine or Colon - p. 155 70. CLINICALLY BASED DIFFERENTIALS - p. 159 71. Chapter 44: Occult GI Bleeding - p. 159 72. Chapter 45: Small Bowel Obstruction - p. 163 73. SECTION 7: COLON - p. 169 74. GENERIC IMAGING PATTERNS - p. 169 75. Chapter 46: Solitary Colonic Filling Defect - p. 169 76. Chapter 47: Multiple Colonic Filling Defects - p. 173 77. Chapter 48: Mass or Inflammation of Ileocecal Area - p. 175 78. Chapter 49: Colonic Ileus or Dilation - p. 181 79. Chapter 50: Toxic Megacolon - p. 185 80. Chapter 51: Rectal or Colonic Fistula - p. 187 81. Chapter 52: Segmental Colonic Narrowing - p. 193 82. Chapter 53: Colonic Thumbprinting - p. 197 83. Chapter 54: Colonic Wall Thickening - p. 199 84. Chapter 55: Smooth Ahaustral Colon - p. 205 85. CLINICALLY BASED DIFFERENTIALS - p. 207 86. Chapter 56: Acute Right Lower Quadrant Pain - p. 207 87. Chapter 57: Acute Left Abdominal Pain - p. 213 88. SECTION 8: SPLEEN - p. 219 89. GENERIC IMAGING PATTERNS - p. 219 90. Chapter 58: Splenomegaly - p. 219 91. Chapter 59: Multiple Splenic Calcifications - p. 225 92. Chapter 60: Solid Splenic Mass or Masses - p. 227 93. Chapter 61: Cystic Splenic Mass - p. 229 94. MODALITY-SPECIFIC IMAGING FINDINGS - p. 231 95. COMPUTED TOMOGRAPHY - p. 231 96. Chapter 62: Diffuse Increased Attenuation, Spleen - p. 231 97. SECTION 9: LIVER - p. 233 98. GENERIC IMAGING PATTERNS - p. 233 99. Chapter 63: Liver Mass With Central or Eccentric Scar - p. 233 100. Chapter 64: Focal Liver Lesion With Hemorrhage - p. 239 101. Chapter 65: Liver "Mass" With Capsular Retraction - p. 243 102. Chapter 66: Fat-Containing Liver Mass - p. 245 103. Chapter 67: Cystic Hepatic Mass - p. 247 104. Chapter 68: Focal Hypervascular Liver Lesion - p. 251 105. Chapter 69: Liver Mass With Mosaic Enhancement - p. 257 106. Chapter 70: Mosaic or Patchy Hepatogram - p. 261 107. Chapter 71: Hepatic Calcifications - p. 265 108. Chapter 72: Liver Lesion Containing Gas - p. 269 109. Chapter 73: Portal Venous Gas - p. 273 110. Chapter 74: Widened Hepatic Fissures - p. 275 111. Chapter 75: Dysmorphic Liver With Abnormal Bile Ducts - p. 277 112. Chapter 76: Focal Hyperperfusion Abnormality (THAD or THID) - p. 281 113. Chapter 77: Periportal Lucency or Edema - p. 287 114. MODALITY-SPECIFIC IMAGING FINDINGS - p. 293 115. MAGNETIC RESONANCE IMAGING - p. 293 116. Chapter 78: Multiple Hypointense Liver Lesions (T2WI) - p. 293 117. Chapter 79: Hyperintense Liver Lesions (T1WI) - p. 297 118. Chapter 80: Liver Lesion With Capsule or Halo on MR - p. 303 119. COMPUTED TOMOGRAPHY - p. 307 120. Chapter 81: Multiple Hypodense Liver Lesions - p. 307 121. Chapter 82: Focal Hyperdense Hepatic Mass on Nonenhanced CT - p. 313 122. Chapter 83: Widespread Low Attenuation Within Liver - p. 317 123. ULTRASOUND - p. 321 124. Chapter 84: Focal Hepatic Echogenic Lesion ± Acoustic Shadowing - p. 321 125. Chapter 85: Hyperechoic Liver, Diffuse - p. 327 126. Chapter 86: Hepatomegaly - p. 329 127. Chapter 87: Diffusely Abnormal Liver Echogenicity - p. 333 128. Chapter 88: Anechoic Liver Lesion - p. 335 129. Chapter 89: Hypoechoic Liver Mass - p. 339 130. Chapter 90: Echogenic Liver Mass - p. 343 131. Chapter 91: Target Lesions in Liver - p. 347 132. Chapter 92: Multiple Hypo-, Hyper- or Anechoic Liver Lesions - p. 349 133. Chapter 93: Hepatic Mass With Central Scar - p. 353 134. Chapter 94: Periportal Lesion - p. 355 135. Chapter 95: Irregular Hepatic Surface - p. 359 136. Chapter 96: Portal Vein Abnormality - p. 361 137. SECTION 10: GALLBLADDER - p. 363 138. GENERIC IMAGING PATTERNS - p. 363 139. Chapter 97: Distended Gallbladder - p. 363 140. Chapter 98: Gas in Bile Ducts or Gallbladder - p. 367 141. Chapter 99: Focal Gallbladder Wall Thickening - p. 371 142. Chapter 100: Diffuse Gallbladder Wall Thickening - p. 373 143. MODALITY-SPECIFIC IMAGING FINDINGS - p. 377 144. COMPUTED TOMOGRAPHY - p. 377 145. Chapter 101: High-Attenuation (Hyperdense) Bile in Gallbladder - p. 377 146. ULTRASOUND - p. 379 147. Chapter 102: Hyperechoic Gallbladder Wall - p. 379 148. Chapter 103: Echogenic Material in Gallbladder - p. 381 149. Chapter 104: Dilated Gallbladder - p. 383 150. Chapter 105: Intrahepatic and Extrahepatic Duct Dilatation - p. 387 151. CLINICALLY BASED DIFFERENTIALS - p. 389 152. Chapter 106: Right Upper Quadrant Pain - p. 389 153. SECTION 11: BILIARY TRACT - p. 395 154. GENERIC IMAGING PATTERNS - p. 395 155. Chapter 107: Dilated Common Bile Duct - p. 395 156. Chapter 108: Asymmetric Dilation of Intrahepatic Bile Ducts - p. 403 157. Chapter 109: Biliary Strictures, Multiple - p. 407 158. MODALITY-SPECIFIC IMAGING FINDINGS - p. 411 159. MAGNETIC RESONANCE IMAGING - p. 411 160. Chapter 110: Hypointense Lesion in Biliary Tree (MRCP) - p. 411 161. SECTION 12: PANCREAS - p. 413 162. GENERIC IMAGING PATTERNS - p. 413 163. Chapter 111: Hypovascular Pancreatic Mass - p. 413 164. Chapter 112: Hypervascular Pancreatic Mass - p. 421 165. Chapter 113: Cystic Pancreatic Mass - p. 425 166. Chapter 114: Atrophy or Fatty Replacement of Pancreas - p. 431 167. Chapter 115: Dilated Pancreatic Duct - p. 433 168. Chapter 116: Infiltration of Peripancreatic Fat Planes - p. 437 169. Chapter 117: Pancreatic Calcifications - p. 443 170. MODALITY-SPECIFIC IMAGING FINDINGS - p. 447 171. ULTRASOUND - p. 447 172. Chapter 118: Cystic Pancreatic Lesion - p. 447 173. Chapter 119: Solid Pancreatic Lesion - p. 451 174. Chapter 120: Pancreatic Duct Dilatation - p. 455 175. SECTION 13: RETROPERITONEUM - p. 457 176. GENERIC IMAGING PATTERNS - p. 457 177. Chapter 121: Retroperitoneal Mass, Cystic - p. 457 178. Chapter 122: Retroperitoneal Mass, Soft Tissue Density - p. 465 179. Chapter 123: Retroperitoneal Mass, Fat Containing - p. 471 180. Chapter 124: Retroperitoneal Hemorrhage - p. 475 181. SECTION 14: ADRENAL - p. 477 182. GENERIC IMAGING PATTERNS - p. 477 183. Chapter 125: Adrenal Mass - p. 477 184. SECTION 15: KIDNEY - p. 485 185. GENERIC IMAGING PATTERNS - p. 485 186. Chapter 126: Calcifications Within Kidney - p. 485 187. Chapter 127: Congenital Renal Anomalies - p. 491 188. Chapter 128: Kidney Transplant Dysfunction - p. 495 189. Chapter 129: Solid Renal Mass - p. 499 190. Chapter 130: Cystic Renal Mass - p. 503 191. Chapter 131: Bilateral Renal Cysts - p. 507 192. Chapter 132: Infiltrative Renal Lesions - p. 511 193. Chapter 133: Perirenal and Subcapsular Mass Lesions - p. 515 194. Chapter 134: Fat-Containing Renal Mass - p. 519 195. Chapter 135: Renal Sinus Lesion - p. 523 196. Chapter 136: Gas in or Around Kidney - p. 527 197. Chapter 137: Delayed or Persistent Nephrogram - p. 529 198. Chapter 138: Wedge-Shaped or Striated Nephrogram - p. 533 199. Chapter 139: Acute Flank Pain - p. 537 200. MODALITY-SPECIFIC IMAGING FINDINGS - p. 543 201. ULTRASOUND - p. 543 202. Chapter 140: Enlarged Kidney - p. 543 203. Chapter 141: Small Kidney - p. 547 204. Chapter 142: Hyperechoic Kidney - p. 551 205. Chapter 143: Dilated Renal Pelvis - p. 555 206. Chapter 144: Hyperechoic Renal Mass - p. 559 207. SECTION 16: COLLECTING SYSTEM - p. 563 208. Chapter 145: Dilated Renal Calyces - p. 563 209. Chapter 146: Filling Defect, Renal Pelvis - p. 569 210. SECTION 17: URETER - p. 573 211. GENERIC IMAGING PATTERNS - p. 573 212. Chapter 147: Ureteral Filling Defect or Stricture - p. 573 213. Chapter 148: Cystic Dilation of Distal Ureter - p. 579 214. SECTION 18: BLADDER - p. 581 215. GENERIC IMAGING PATTERNS - p. 581 216. Chapter 149: Filling Defect in Urinary Bladder - p. 581 217. Chapter 150: Urinary Bladder Outpouching - p. 589 218. Chapter 151: Gas Within Urinary Bladder - p. 591 219. Chapter 152: Abnormal Bladder Wall - p. 593 220. SECTION 19: URETHRA - p. 597 221. GENERIC IMAGING PATTERNS - p. 597 222. Chapter 153: Urethral Stricture - p. 597 223. SECTION 20: SCROTUM - p. 601 224. GENERIC IMAGING PATTERNS - p. 601 225. Chapter 154: Intratesticular Mass - p. 601 226. Chapter 155: Testicular Cystic Lesions - p. 607 227. Chapter 156: Extratesticular Cystic Mass - p. 609 228. Chapter 157: Extratesticular Solid Mass - p. 611 229. Chapter 158: Diffuse Testicular Enlargement - p. 615 230. Chapter 159: Decreased Testicular Size - p. 617 231. Chapter 160: Testicular Calcifications - p. 619 232. SECTION 21: PROSTATE AND SEMINAL VESICLES - p. 621 233. GENERIC IMAGING PATTERNS - p. 621 234. Chapter 161: Focal Lesion in Prostate - p. 621 235. Chapter 162: Enlarged Prostate - p. 629 236. SECTION 22: FEMALE PELVIS - p. 631 237. GENERIC IMAGING PATTERNS - p. 631 238. Chapter 163: Pelvic Fluid - p. 631 239. Chapter 164: Female Lower Genital Cysts - p. 637 240. Chapter 165: Extraovarian Adnexal Mass - p. 643 241. CLINICALLY BASED DIFFERENTIALS - p. 649 242. Chapter 166: Acute Pelvic Pain in Nonpregnant Women - p. 649 243. SECTION 23: UTERUS - p. 655 244. GENERIC IMAGING PATTERNS - p. 655 245. Chapter 167: Enlarged Uterus - p. 655 246. Chapter 168: Thickened Endometrium - p. 661 247. CLINICALLY BASED DIFFERENTIALS - p. 667 248. Chapter 169: Abnormal Uterine Bleeding - p. 667 249. SECTION 24: OVARY - p. 673 250. GENERIC IMAGING PATTERNS - p. 673 251. Chapter 170: Multilocular Ovarian Cysts - p. 673 252. Chapter 171: Unilocular Ovarian Cysts - p. 681 253. Chapter 172: Solid Ovarian Masses - p. 687 254. Chapter 173: Calcified Ovarian Masses - p. 691 255. MODALITY-SPECIFIC IMAGING FINDINGS - p. 695 256. MAGNETIC RESONANCE IMAGING - p. 695 257. Chapter 174: Ovarian Lesions With Low T2 Signal Intensity - p. 695 258. INDEX - p. 701
Highly practical and user-friendly, ExpertDDx: Abdomen and Pelvis, third edition, helps you reach accurate, clinically useful differential diagnoses in your everyday practice. It presents the most useful differential diagnoses for each region of the abdomen and pelvis, grouped according to anatomic location, generic imaging findings, modality-specific findings, or clinical-based indications. Each differential diagnosis includes several high-quality, succinctly annotated images; a list of diagnostic possibilities sorted as common, less common, and rare but important; and brief, bulleted text offering helpful diagnostic clues. It’s an excellent resource for subspecialty abdominal imagers as well as general radiologists and trainees, providing invaluable assistance in reaching logical, on-target differential diagnoses based on key imaging findings and clinical details.
Covers 175 of the most common diagnostic challenges in abdominal and pelvic imaging, enhanced by more than 2,100 radiologic images, full-color illustrations, clinical and histologic photographs, and gross pathology images
Provides a quick review of the salient features of each entity, differentiating features from other similar-appearing abnormalities
Includes new chapters on hematuria, flank pain, acute scrotal pain, and seminal vesicle
Adds greater focus to advancing prostate imaging methods with expanded content on lesions in the peripheral zone and lesions in the transition zone, as well as new coverage of transplant imaging
Contains updates to numerous classifications, including LI-RADS for liver, O-RADS for ovarian masses, and the Tanaka classification for pancreatic cysts
Features new MR examples and MR-specific diagnoses throughout, plus new differentials for contrast-enhanced ultrasound findings related to liver and kidney lesions
1. Cover image - p. Cover 2. Title page - p. ii 3. Table of Contents - p. iii 4. Copyright - p. iii 5. Dedications - p. iii 6. Contributing Authors - p. v 7. Preface - p. v 8. Acknowledgments - p. ix 9. Sections - p. xi 10. TABLE OF CONTENTS - p. xiii 11. SECTION 1: PERITONEUM AND MESENTERY - p. xiii 12. GENERIC IMAGING PATTERNS - p. xiii 13. Chapter 1: Mesenteric or Omental Mass (Solid) - p. xiii 14. Chapter 2: Mesenteric or Omental Mass (Cystic) - p. 9 15. Chapter 3: Fat-Containing Lesion, Peritoneal Cavity - p. 13 16. Chapter 4: Mesenteric Lymphadenopathy - p. 17 17. Chapter 5: Abdominal Calcifications - p. 21 18. Chapter 6: Pneumoperitoneum - p. 27 19. Chapter 7: Hemoperitoneum - p. 31 20. Chapter 8: Misty (Infiltrated) Mesentery - p. 35 21. MODALITY-SPECIFIC IMAGING FINDINGS - p. 41 22. COMPUTED TOMOGRAPHY - p. 41 23. Chapter 9: High-Attenuation (Hyperdense) Ascites - p. 41 24. SECTION 2: ABDOMINAL WALL - p. 45 25. ANATOMICALLY BASED DIFFERENTIALS - p. 45 26. Chapter 10: Abdominal Wall Mass - p. 45 27. Chapter 11: Mass in Iliopsoas Compartment - p. 51 28. Chapter 12: Groin Mass - p. 53 29. Chapter 13: Elevated or Deformed Hemidiaphragm - p. 57 30. Chapter 14: Defect in Abdominal Wall (Hernia) - p. 59 31. SECTION 3: ESOPHAGUS - p. 63 32. GENERIC IMAGING PATTERNS - p. 63 33. Chapter 15: Intraluminal Mass, Esophagus - p. 63 34. Chapter 16: Extrinsic Mass, Esophagus - p. 67 35. Chapter 17: Lesion at Pharyngoesophageal Junction - p. 71 36. Chapter 18: Esophageal Ulceration - p. 73 37. Chapter 19: Mucosal Nodularity, Esophagus - p. 75 38. Chapter 20: Esophageal Strictures - p. 77 39. Chapter 21: Dilated Esophagus - p. 79 40. Chapter 22: Esophageal Outpouchings (Diverticula) - p. 81 41. Chapter 23: Esophageal Dysmotility - p. 83 42. CLINICALLY BASED DIFFERENTIALS - p. 85 43. Chapter 24: Odynophagia - p. 85 44. SECTION 4: STOMACH - p. 87 45. GENERIC IMAGING PATTERNS - p. 87 46. Chapter 25: Gastric Mass Lesions - p. 87 47. Chapter 26: Intramural Mass, Stomach - p. 95 48. Chapter 27: Target or Bull's-Eye Lesions, Stomach - p. 97 49. Chapter 28: Gastric Ulceration (Without Mass) - p. 99 50. Chapter 29: Intrathoracic Stomach - p. 101 51. Chapter 30: Thickened Gastric Folds - p. 103 52. Chapter 31: Gastric Dilation or Outlet Obstruction - p. 109 53. Chapter 32: Linitis Plastica, Limited Distensibility - p. 113 54. CLINICALLY BASED DIFFERENTIALS - p. 117 55. Chapter 33: Epigastric Pain - p. 117 56. Chapter 34: Left Upper Quadrant Mass - p. 123 57. SECTION 5: DUODENUM - p. 127 58. GENERIC IMAGING PATTERNS - p. 127 59. Chapter 35: Duodenal Mass - p. 127 60. Chapter 36: Dilated Duodenum - p. 135 61. Chapter 37: Thickened Duodenal Folds - p. 137 62. SECTION 6: SMALL INTESTINE - p. 139 63. GENERIC IMAGING PATTERNS - p. 139 64. Chapter 38: Multiple Masses or Filling Defects, Small Bowel - p. 139 65. Chapter 39: Cluster of Dilated Small Bowel - p. 143 66. Chapter 40: Aneurysmal Dilation of Small Bowel Lumen - p. 145 67. Chapter 41: Stenosis, Terminal Ileum - p. 147 68. Chapter 42: Segmental or Diffuse Small Bowel Wall Thickening - p. 149 69. Chapter 43: Pneumatosis of Small Intestine or Colon - p. 155 70. CLINICALLY BASED DIFFERENTIALS - p. 159 71. Chapter 44: Occult GI Bleeding - p. 159 72. Chapter 45: Small Bowel Obstruction - p. 163 73. SECTION 7: COLON - p. 169 74. GENERIC IMAGING PATTERNS - p. 169 75. Chapter 46: Solitary Colonic Filling Defect - p. 169 76. Chapter 47: Multiple Colonic Filling Defects - p. 173 77. Chapter 48: Mass or Inflammation of Ileocecal Area - p. 175 78. Chapter 49: Colonic Ileus or Dilation - p. 181 79. Chapter 50: Toxic Megacolon - p. 185 80. Chapter 51: Rectal or Colonic Fistula - p. 187 81. Chapter 52: Segmental Colonic Narrowing - p. 193 82. Chapter 53: Colonic Thumbprinting - p. 197 83. Chapter 54: Colonic Wall Thickening - p. 199 84. Chapter 55: Smooth Ahaustral Colon - p. 205 85. CLINICALLY BASED DIFFERENTIALS - p. 207 86. Chapter 56: Acute Right Lower Quadrant Pain - p. 207 87. Chapter 57: Acute Left Abdominal Pain - p. 213 88. SECTION 8: SPLEEN - p. 219 89. GENERIC IMAGING PATTERNS - p. 219 90. Chapter 58: Splenomegaly - p. 219 91. Chapter 59: Multiple Splenic Calcifications - p. 225 92. Chapter 60: Solid Splenic Mass or Masses - p. 227 93. Chapter 61: Cystic Splenic Mass - p. 229 94. MODALITY-SPECIFIC IMAGING FINDINGS - p. 231 95. COMPUTED TOMOGRAPHY - p. 231 96. Chapter 62: Diffuse Increased Attenuation, Spleen - p. 231 97. SECTION 9: LIVER - p. 233 98. GENERIC IMAGING PATTERNS - p. 233 99. Chapter 63: Liver Mass With Central or Eccentric Scar - p. 233 100. Chapter 64: Focal Liver Lesion With Hemorrhage - p. 239 101. Chapter 65: Liver "Mass" With Capsular Retraction - p. 243 102. Chapter 66: Fat-Containing Liver Mass - p. 245 103. Chapter 67: Cystic Hepatic Mass - p. 247 104. Chapter 68: Focal Hypervascular Liver Lesion - p. 251 105. Chapter 69: Liver Mass With Mosaic Enhancement - p. 257 106. Chapter 70: Mosaic or Patchy Hepatogram - p. 261 107. Chapter 71: Hepatic Calcifications - p. 265 108. Chapter 72: Liver Lesion Containing Gas - p. 269 109. Chapter 73: Portal Venous Gas - p. 273 110. Chapter 74: Widened Hepatic Fissures - p. 275 111. Chapter 75: Dysmorphic Liver With Abnormal Bile Ducts - p. 277 112. Chapter 76: Focal Hyperperfusion Abnormality (THAD or THID) - p. 281 113. Chapter 77: Periportal Lucency or Edema - p. 287 114. MODALITY-SPECIFIC IMAGING FINDINGS - p. 293 115. MAGNETIC RESONANCE IMAGING - p. 293 116. Chapter 78: Multiple Hypointense Liver Lesions (T2WI) - p. 293 117. Chapter 79: Hyperintense Liver Lesions (T1WI) - p. 297 118. Chapter 80: Liver Lesion With Capsule or Halo on MR - p. 303 119. COMPUTED TOMOGRAPHY - p. 307 120. Chapter 81: Multiple Hypodense Liver Lesions - p. 307 121. Chapter 82: Focal Hyperdense Hepatic Mass on Nonenhanced CT - p. 313 122. Chapter 83: Widespread Low Attenuation Within Liver - p. 317 123. ULTRASOUND - p. 321 124. Chapter 84: Focal Hepatic Echogenic Lesion ± Acoustic Shadowing - p. 321 125. Chapter 85: Hyperechoic Liver, Diffuse - p. 327 126. Chapter 86: Hepatomegaly - p. 329 127. Chapter 87: Diffusely Abnormal Liver Echogenicity - p. 333 128. Chapter 88: Anechoic Liver Lesion - p. 335 129. Chapter 89: Hypoechoic Liver Mass - p. 339 130. Chapter 90: Echogenic Liver Mass - p. 343 131. Chapter 91: Target Lesions in Liver - p. 347 132. Chapter 92: Multiple Hypo-, Hyper- or Anechoic Liver Lesions - p. 349 133. Chapter 93: Hepatic Mass With Central Scar - p. 353 134. Chapter 94: Periportal Lesion - p. 355 135. Chapter 95: Irregular Hepatic Surface - p. 359 136. Chapter 96: Portal Vein Abnormality - p. 361 137. SECTION 10: GALLBLADDER - p. 363 138. GENERIC IMAGING PATTERNS - p. 363 139. Chapter 97: Distended Gallbladder - p. 363 140. Chapter 98: Gas in Bile Ducts or Gallbladder - p. 367 141. Chapter 99: Focal Gallbladder Wall Thickening - p. 371 142. Chapter 100: Diffuse Gallbladder Wall Thickening - p. 373 143. MODALITY-SPECIFIC IMAGING FINDINGS - p. 377 144. COMPUTED TOMOGRAPHY - p. 377 145. Chapter 101: High-Attenuation (Hyperdense) Bile in Gallbladder - p. 377 146. ULTRASOUND - p. 379 147. Chapter 102: Hyperechoic Gallbladder Wall - p. 379 148. Chapter 103: Echogenic Material in Gallbladder - p. 381 149. Chapter 104: Dilated Gallbladder - p. 383 150. Chapter 105: Intrahepatic and Extrahepatic Duct Dilatation - p. 387 151. CLINICALLY BASED DIFFERENTIALS - p. 389 152. Chapter 106: Right Upper Quadrant Pain - p. 389 153. SECTION 11: BILIARY TRACT - p. 395 154. GENERIC IMAGING PATTERNS - p. 395 155. Chapter 107: Dilated Common Bile Duct - p. 395 156. Chapter 108: Asymmetric Dilation of Intrahepatic Bile Ducts - p. 403 157. Chapter 109: Biliary Strictures, Multiple - p. 407 158. MODALITY-SPECIFIC IMAGING FINDINGS - p. 411 159. MAGNETIC RESONANCE IMAGING - p. 411 160. Chapter 110: Hypointense Lesion in Biliary Tree (MRCP) - p. 411 161. SECTION 12: PANCREAS - p. 413 162. GENERIC IMAGING PATTERNS - p. 413 163. Chapter 111: Hypovascular Pancreatic Mass - p. 413 164. Chapter 112: Hypervascular Pancreatic Mass - p. 421 165. Chapter 113: Cystic Pancreatic Mass - p. 425 166. Chapter 114: Atrophy or Fatty Replacement of Pancreas - p. 431 167. Chapter 115: Dilated Pancreatic Duct - p. 433 168. Chapter 116: Infiltration of Peripancreatic Fat Planes - p. 437 169. Chapter 117: Pancreatic Calcifications - p. 443 170. MODALITY-SPECIFIC IMAGING FINDINGS - p. 447 171. ULTRASOUND - p. 447 172. Chapter 118: Cystic Pancreatic Lesion - p. 447 173. Chapter 119: Solid Pancreatic Lesion - p. 451 174. Chapter 120: Pancreatic Duct Dilatation - p. 455 175. SECTION 13: RETROPERITONEUM - p. 457 176. GENERIC IMAGING PATTERNS - p. 457 177. Chapter 121: Retroperitoneal Mass, Cystic - p. 457 178. Chapter 122: Retroperitoneal Mass, Soft Tissue Density - p. 465 179. Chapter 123: Retroperitoneal Mass, Fat Containing - p. 471 180. Chapter 124: Retroperitoneal Hemorrhage - p. 475 181. SECTION 14: ADRENAL - p. 477 182. GENERIC IMAGING PATTERNS - p. 477 183. Chapter 125: Adrenal Mass - p. 477 184. SECTION 15: KIDNEY - p. 485 185. GENERIC IMAGING PATTERNS - p. 485 186. Chapter 126: Calcifications Within Kidney - p. 485 187. Chapter 127: Congenital Renal Anomalies - p. 491 188. Chapter 128: Kidney Transplant Dysfunction - p. 495 189. Chapter 129: Solid Renal Mass - p. 499 190. Chapter 130: Cystic Renal Mass - p. 503 191. Chapter 131: Bilateral Renal Cysts - p. 507 192. Chapter 132: Infiltrative Renal Lesions - p. 511 193. Chapter 133: Perirenal and Subcapsular Mass Lesions - p. 515 194. Chapter 134: Fat-Containing Renal Mass - p. 519 195. Chapter 135: Renal Sinus Lesion - p. 523 196. Chapter 136: Gas in or Around Kidney - p. 527 197. Chapter 137: Delayed or Persistent Nephrogram - p. 529 198. Chapter 138: Wedge-Shaped or Striated Nephrogram - p. 533 199. Chapter 139: Acute Flank Pain - p. 537 200. MODALITY-SPECIFIC IMAGING FINDINGS - p. 543 201. ULTRASOUND - p. 543 202. Chapter 140: Enlarged Kidney - p. 543 203. Chapter 141: Small Kidney - p. 547 204. Chapter 142: Hyperechoic Kidney - p. 551 205. Chapter 143: Dilated Renal Pelvis - p. 555 206. Chapter 144: Hyperechoic Renal Mass - p. 559 207. SECTION 16: COLLECTING SYSTEM - p. 563 208. Chapter 145: Dilated Renal Calyces - p. 563 209. Chapter 146: Filling Defect, Renal Pelvis - p. 569 210. SECTION 17: URETER - p. 573 211. GENERIC IMAGING PATTERNS - p. 573 212. Chapter 147: Ureteral Filling Defect or Stricture - p. 573 213. Chapter 148: Cystic Dilation of Distal Ureter - p. 579 214. SECTION 18: BLADDER - p. 581 215. GENERIC IMAGING PATTERNS - p. 581 216. Chapter 149: Filling Defect in Urinary Bladder - p. 581 217. Chapter 150: Urinary Bladder Outpouching - p. 589 218. Chapter 151: Gas Within Urinary Bladder - p. 591 219. Chapter 152: Abnormal Bladder Wall - p. 593 220. SECTION 19: URETHRA - p. 597 221. GENERIC IMAGING PATTERNS - p. 597 222. Chapter 153: Urethral Stricture - p. 597 223. SECTION 20: SCROTUM - p. 601 224. GENERIC IMAGING PATTERNS - p. 601 225. Chapter 154: Intratesticular Mass - p. 601 226. Chapter 155: Testicular Cystic Lesions - p. 607 227. Chapter 156: Extratesticular Cystic Mass - p. 609 228. Chapter 157: Extratesticular Solid Mass - p. 611 229. Chapter 158: Diffuse Testicular Enlargement - p. 615 230. Chapter 159: Decreased Testicular Size - p. 617 231. Chapter 160: Testicular Calcifications - p. 619 232. SECTION 21: PROSTATE AND SEMINAL VESICLES - p. 621 233. GENERIC IMAGING PATTERNS - p. 621 234. Chapter 161: Focal Lesion in Prostate - p. 621 235. Chapter 162: Enlarged Prostate - p. 629 236. SECTION 22: FEMALE PELVIS - p. 631 237. GENERIC IMAGING PATTERNS - p. 631 238. Chapter 163: Pelvic Fluid - p. 631 239. Chapter 164: Female Lower Genital Cysts - p. 637 240. Chapter 165: Extraovarian Adnexal Mass - p. 643 241. CLINICALLY BASED DIFFERENTIALS - p. 649 242. Chapter 166: Acute Pelvic Pain in Nonpregnant Women - p. 649 243. SECTION 23: UTERUS - p. 655 244. GENERIC IMAGING PATTERNS - p. 655 245. Chapter 167: Enlarged Uterus - p. 655 246. Chapter 168: Thickened Endometrium - p. 661 247. CLINICALLY BASED DIFFERENTIALS - p. 667 248. Chapter 169: Abnormal Uterine Bleeding - p. 667 249. SECTION 24: OVARY - p. 673 250. GENERIC IMAGING PATTERNS - p. 673 251. Chapter 170: Multilocular Ovarian Cysts - p. 673 252. Chapter 171: Unilocular Ovarian Cysts - p. 681 253. Chapter 172: Solid Ovarian Masses - p. 687 254. Chapter 173: Calcified Ovarian Masses - p. 691 255. MODALITY-SPECIFIC IMAGING FINDINGS - p. 695 256. MAGNETIC RESONANCE IMAGING - p. 695 257. Chapter 174: Ovarian Lesions With Low T2 Signal Intensity - p. 695 258. INDEX - p. 701