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32 Cards in this Set

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  • Back
used in the initial workup in patients complaining of abdominal pain
abdominal radiographs
used to evaluate specific complaints localizing in the esophagus
*used in work up of gastric and colon diseases as well*
These modalities emit no radiation
evaluation for cholelithiasis
used for nonspecific abdominal pain and emits radiation
Both of these densities outline the margins of the organs
what factors all appear as water densities on radiographs?
rule of thumb in air/pneumoperitoneum?
free air rises to the most superior portion of the abdominal cavity
air/pneumoperitoneum seen best in what radiograph?
alternative radiograph for pneumoperitoneum
left side down decubitus with cross table film
*detects air between the liver and right lower ribs and can be used in sick patients*
most easily seen on the right side and definitive diagnosis in air/pneumoperitoneum? Why not left?
air under the diaphragm
it can be difficult to distinguish from air in the stomach or splenic flexure
upon looking at a radiograph, the clinician noticed that both sides of a section of bowel are lined with air. what is this finding?
Rigler's sign *AKA double-wall sign*
this 'sign' is typically seen in the supine position when lots of free air is within the abdomen
Rigler's sign
A clinician is looking at a radiograph and asks the attending to describe the Morrison's pouch. what is this?
air can collect in this space located inferior to the liver and above the right kidney
When air is collected over the liver, in a supine position, this structure of the liver is also outlined on the edges
Falciform ligament
A radiologists notices a lack of gas in an area near the bowel that normally contains air. What is the diagnosis?
Bowel distension
Name common calcification/ossification in the abdominal area
Renal stones
Renal cyst wall
Atherosclerotic calcification of the aorta
urinary bladder stones
Air in this organ is always NORMAL?
Air is seen in 2 loops of the small bowel. Should this be a concern?
it is normal to see 1-2 loops of scattered air in the small bowel of noral caliber
A small bowel is measured at >3cm. is this normal?
Abnormal since the measurement is above 3cm
As a radiologist, Clare can expect to normally see air in what part of the large intestine?
*not necessarily normal*
rectum and sigmoid
On rotations a medical student is asked what is the normal air-fluid levels of the stomach, small bowel and large intestine. How would you answer?
Stomach - only normal in upright not supine
small bowel - 2-3 allowed
large bowel - not typically seen
Valvulae are characteristic of this organ which is <3cm in diameter
small bowel
Haustra characterize this organ
Large bowel
Name 3 abnormal gas patterns
Mechanical: SBO and LBO
this is a bowel dilatation without mechanical obstruction caused by several pathologies including metabolic disorders and medications
Describe the features of an Ileus
1-2 persistently dilated loops of small or large bowel
Air in rectum or sigmoid
may resemble early or partial SBO
patient is seen with dilated small bowel loops with little gas in the colon. Disproportionate air is seen throughout small bowel. what is the diagnosis?
patient is being treated for air causing an obstruction in their bowel tract. Little air was reported by the radiologist in the small bowel or rectum. what is the prognosis?
Mechanical LBO
how does an "apparent SBO" develope?
A LBO with an incompetent ileocecal valve.
Adhesions, hernias, cancer, and volvulus are all causes of what bowel condition?
for optimal examination of the bowel what is recommended?
Oral contrast