Solutions
A hemorrhagic cyst can contain? Correct Answers blood and
debris and may appear as a complex mass with irregular borders
and internal septa
appendiceal abscess ultrasound Correct Answers may be
echogenic because colon organisms may form gas within them
Comet-tail artifacts in complex cyst thyroid nodule are related
to? Correct Answers presence of colloid substances in the cyst
How is the abdominal ultrasound preformed for appendicitis?
Correct Answers 5 - 12 MHz transducer using the graded
compression technique
How is the sonographic structure of the bowel usually described
as? Correct Answers five layers: three echogenic layers
separated by two hypoechoic ones
If the bowel wall is thicker than > 1 cm what is it generally
considered? Correct Answers malignant
In some cases of appendicitis what may be the primary finding?
Correct Answers the lumen is non-distended and appendiceal
wall thickening is seen
Power Doppler imaging in abscess show? Correct Answers the
increased blood flow will be greatest on the serosal surface of
, the bowel adjacent to the abscess, whereas blood flow will be
greatest in the mucosa in cases of ileocolitis
Sonographically a simple cyst is? Correct Answers circular or
oval, with discrete margins contain no internal echoes and
exhibit posterior enhancement
Sonographically what is the difference between carcinoma and
lymphoma? Correct Answers 1. gastric carcinoma is sometimes
more echogenic than lymphoma
2. carcinoma infiltrative lesions all layers are more equally
involved than in lymphoma
Two true thyroid cysts are? Correct Answers Thyroglossal duct
cyst and Brachial cleft cyst
What age does appendicitis usually occur? Correct Answers
between 20 to 30 years, but can develop at any age
What are the 3 hormones that the thyroid produce? Correct
Answers trilodothyronine (T3), Thyroxine (T4), and Calcitonin
or Thyrocalcitonin
What are the 5 layers of the bowel wall from interior to exterior?
Correct Answers 1. hyperechoic inner layer represents the
border between the digestive fluid and the mucosa,
2. hypoechoic layer, commonly thin, represents the mucosa,
lamina propria, lamina muscularis
3. hyperechoic layer the submucosa
4. hypoechoic layer, the muscular layer, its thickness depends
upon the segment of the digestive tract