211 Spleen

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In the adult, splenomegaly is diagnosed when the length of the spleen exceeds __ centimeters (cm).

13

Which one of the following is the most common clinical presentation in patients with a splenic hamartoma? Asymptomatic Epigastric pain Abdominal pain Right upper quadrant pain.

asymptomatic

Primary tumors that may metastasize to the spleen originate from all of the following structures except the: ovary. kidney. stomach. brain.

brain

What sonographic signs are present in the patient with histoplasmosis?

bright echos

Splenic infarction is most commonly the result of

cardiac emboli

Atrophy of the spleen may be found in all of the following except: wasting diseases. cirrhosis. normal individuals. sickle cell anemia.

cirrhosis

All of the following are functions of the spleen except: destruction of white blood cells. production of plasma cells. production of lymphocytes. destruction of red blood cells.

destruction of RBC

In the early stages of sickle cell anemia, the spleen generally appears:

enlarged

The major function of the spleen is

filter peripheral blood

Which one of the following may cause a splenic rupture? Complicated cyst Hemangioma Metastatic tumor Infarction

hemangioma

The normal sonographic appearance of the splenic parenchyma is:

homogeneous and similar to liver

An abnormal decrease in platelets may be the result of a(n):

internal hemorrhage

Massive splenomegaly is most likely the result of

myelofibrosis

When accessory spleens are present, they are usually located

near the hilum of the spleen

The splenic vein courses along the posterior border of the

pancreas

The spleen is variable in size and is considered to be all of the following except: orange segment. tetrahedral. pentagonal. triangular.

pentagonal

Other areas that should be examined when ruling out a splenic rupture include all of the following except the: pericardium. renal gutter. liver and lesser sac. pelvis.

pericardium

A chronic disease of unknown causes that involves all bone marrow elements is

polycythemia vera.

The best patient position to evaluate the spleen is

right decubitus

Lymph nodes emerge from the splenic hilum and course along the:

splenic artery

Splenomegaly may result from all of the following except: congestion. subphrenic abscess. trauma. collagen vascular disease.

subphrenic abscess

The spleen has two components joined at the hilum; they are the __ and __ components.

superomedial and inferolateral

Which one of the following statements describes the correct anatomic location of structures adjacent to the spleen? The diaphragm is anterior, lateral, and inferior to the spleen. The right adrenal and kidney lie superior to the spleen. The left kidney lies inferior and medial to the spleen. The fundus of the stomach and lesser sac are medial and posterior to the splenic hilum.

the left kidney lies inferior and medial to the spleen

Which one of the following statements about the spleen is false? The spleen lies inferior to the diaphragm The spleen is located within the retroperitoneum. The spleen lies posterior to the hypochondrium. The normal adult spleen measures approximately 7 cm in width.

the spleen is located within the retroperitoneum

A spleen that has migrated from its normal location is termed a(n):

wandering spleen


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