File 19 Flashcards
Azygos and hemi-azygos joins at:
A) T1
B) T2
C) T5
D) T8
D) T8
What is the correct order of the cavernous sinus structures, from top to bottom:
A) CN III, CN IV, CN VI, V1 then V2 of CN V
The normal attenuation of liver in non-enhanced study is:
A) 20 – 30 Hu.
B) 40 – 65 Hu.
B) 40 – 65 Hu.
At unenhanced CT, normal liver parenchyma is about 60 HU.
Regarding anatomy relation of the head of the pancreas to SMV:
A) Anterior
B) Posterior
C) Left side
D) Right side
D) Right side
Answer: D
Notes:
- Head → right lateral to SMA.
- Neck → anterior to SMA.
- Uncinate → posterior to SMA.
56-year-old male with asymmetry at chest wall otherwise normal, denies
any surgical history, physical examination showed a mild degree of chest
wall asymmetry. CXR demonstrated a unilateral hyperlucent hemithorax.
What is the most likely diagnosis?
A) Poland syndrome
B) PTX
C) Swyer-james syndrome
D) Mastectomy
E) Pleural effusion
A) Poland syndrome
Case scenario ➝ doctor wants CT chest for ➝ what is the most
important location for aortic injury?
A) Descending aorta
B) Aortic isthmus
C) At diaphragmatic hiatus
D) Aortic arch
B) Aortic isthmus
Answer: B
Notes:
- Distal to the left subclavian artery origin.
Sign of pneumomediastinum:
A) Inverted V shaped
B) Deep sulcus
C) Air Crescent
D) Spinnaker sign
D) Spinnaker sign
What suggests acute rather than chronic pulmonary embolism?
A) Tram tracking
B) Crescent thrombus adherent to wall
C) Calcification
D) Increase artery size
A) Tram tracking
Best way to evaluate lung fatty lesion is do CT with:
A) Bone algorithm
B) Lung window
C) 1 mm thickness soft tissue window.
D) 1 mm thickness with sharp filter.
C) 1 mm thickness soft tissue window.
Notes:
- Several authors have studied the relationship between the accuracy of nodule measurement
and CT section thickness. They consistently found that variability decreased with decreasing
section thickness and that the thinnest sections (usually 1 mm) provided the most consistent
results.
- 1 mm thickness with sharp filter → bone algorithm.
US findings in main renal artery stenosis:
A) Increase Peak systolic velocity 180
B) Fast intra renal artery systolic acceleration
C) Slow intra renal artery systolic acceleration
D) Reversal systolic of 0.5
A) Increase Peak systolic velocity 180
Patient suspected Pulmonary embolism, the most appropriate initial
exam:
A) Chest x ray.
B) CT angio.
A) Chest x ray.
Answer: A
Notes:
o If pregnant
o US leg
+ → Tx
- → X-ray
* - → CTA or V/Q
* + → Treat the underlying cause
One is acute sign of DVT:
A) Dilated vein caliber
B) Decreased caliber of vein
C) Thrombus attached to the wall
D) Multiple collateral veins
A) Dilated vein caliber
Young married female. CT showed heterogeneous hypervascular liver lesion with hemorrhage. What is the most likely diagnosis?
A) Hamartoma
B) Adenoma
C) FNH
D) Metastasis
B) Adenoma
Patient underwent colonoscopy, presented with severe pain not relieved
by Buscopan, what to do next:
A) Double contrast enema
B) Single water-soluble contrast.
B) Single water-soluble contrast.
Answer: Single water-soluble contrast.
Notes:
- If a suspected bowel perforation is the primary indication for the study, then protocolling the
study with a water-soluble contrast medium is useful.
Patient post-chemo catheterization 3 hours with hypotension and right
groin swelling:
A) AV fistula
B) Dissection
C) Aneurysm
D) Hematoma
D) Hematoma
Young patient with hepatosplenomegaly and pancytopenia with
Erlenmeyer flask deformity of the bone and multiple intramedullary
infarctions, what is the most likely diagnosis:
A) Thalassemia
B) Gaucher’s disease
C) Osteoporosis
D) Lymphoma
B) Gaucher’s disease
30 Year old male with ivory vertebra what is the most likely?
A) Osteoid osteoma
B) Lymphoma
C) Prostate mets
D) Paget’s disease
B) Lymphoma
Lytic mixed sclerotic lesion with interrupted periosteal reaction and
large soft tissue swelling in distal femur, what to do next:
A) Follow up femur x ray after 6 months
B) CT chest and bone scan
C) Joint aspiration
D) Take a biopsy
B) CT chest and bone scan
Characteristics of lymphoma:
A) Calcification
B) Hemorrhage
C) Necrosis is uncommon in immunocompromised patients
D) Periventricular area
E) No enhancement
D) Periventricular area
A patient with maxillary sinus mass extended to the Pterygopalatine
fossa:
A) Angiofibroma
B) Angiosarcoma
A) Angiofibroma
Adult patient with hyperdense brain mass and wide base toward the
parietal bone, in post-contrast it shows uniform enhancement. What is the diagnosis?
A) Meningioma
Contraindication for salivary gland scintigraphy:
A) Purulent discharge
B) Calculus
A) Purulent discharge
