3/27/07
3/25/07
MRI feature of white matter disease
Brain atrophy
Involved symmetericity
Myelin abnormality
Brainstem & cerebellar involvement
Contrast enhancement
Malformation
Dynamic imaging pattern
Involved symmetericity
Myelin abnormality
Brainstem & cerebellar involvement
Contrast enhancement
Malformation
Dynamic imaging pattern
Pseudomyxoma peritonei
Ruptured mucocele with foreign body peritonitis
Male: cystadenocarcinoma of appendix
Female: cystadenocarcinoma of ovary
*Thickening of peritoneal + omental sufaces
*Omental cake
*Posterior fixation of bowel loops and mesentery
*Voluminous septated/loculated pseudoascites
*Several thin-walled cystic masses of different size throughout abdominal cavity
*Scalloped contour of liver and splenic margins
Annular / semicircular calcifications
Male: cystadenocarcinoma of appendix
Female: cystadenocarcinoma of ovary
*Thickening of peritoneal + omental sufaces
*Omental cake
*Posterior fixation of bowel loops and mesentery
*Voluminous septated/loculated pseudoascites
*Several thin-walled cystic masses of different size throughout abdominal cavity
*Scalloped contour of liver and splenic margins
Annular / semicircular calcifications
Labels:
a disease a day,
cancer,
gastrointestinal system,
image,
radiology
3/23/07
3/20/07
Hiatal hernia
Sliding hernia (axial type): 95%
- GEJ is aboe the diaphragm
- Reflux is more likely with larger hernias
- May be reducible in erect position
Paraesophageal hernia
- GEJ is in its normal position
- Part of the fundus is herniated above the diaphragm through esophageal hiatus and lies to the side of the esophagus
- Not reflux
- More prone to mechanical complications
- Usually nonreducible
*Gastric folds aboe diaphragm
*B line above diaphragm
*Schatzki's ring above diaphragm
%Esophagitis
%Duodenal ulcers
- GEJ is aboe the diaphragm
- Reflux is more likely with larger hernias
- May be reducible in erect position
Paraesophageal hernia
- GEJ is in its normal position
- Part of the fundus is herniated above the diaphragm through esophageal hiatus and lies to the side of the esophagus
- Not reflux
- More prone to mechanical complications
- Usually nonreducible
*Gastric folds aboe diaphragm
*B line above diaphragm
*Schatzki's ring above diaphragm
%Esophagitis
%Duodenal ulcers
3/16/07
Sign of Intraperitoneal Free Air
Rigler's sign
Triangle sign
Falciform ligament sign
Inverted V sign
Urachus sign
Hyperlucent liver sign
Hepatic age som
Doge cape sign
Anterior superior oal sign
Foot ball sign
Dolphin sign
Triangle sign
Falciform ligament sign
Inverted V sign
Urachus sign
Hyperlucent liver sign
Hepatic age som
Doge cape sign
Anterior superior oal sign
Foot ball sign
Dolphin sign
Labels:
gastrointestinal system,
image,
radiology,
sign sign sign
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