Spleen

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

13

Which one of the following symptoms is the most symptom in patients with a splenic hamartoma?

Asymptomatic

Primary tumors that may metastasize to the spleen originate from all of the following structures except:

Brain

What sonographic signs are present in the patient with histoplasmosis?

Bright echoes

Splenic infarction is most commonly the result of:

Cardiac emboli

Which one of the following may cause a splenic rupture?

Cavernous hemangioma

Atrophy of the spleen may be found in all of the following except:

Cirrhosis

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

Enlarged

The normal sonographic appearance of the splenic parenchyma is:

Homogeneous and similar to the 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:

Pentagonal

Other areas that should be examined when ruling out a splenic rupture include all of the following except:

Pericardium

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

Polycythemia vera

All of the following are functions of the spleen except:

Production of red blood cells

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:

Subphrenic abscess

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

Superomedial; inferolateral

Which one of the following statements describes the correct anatomic location of structures adjacent to the spleen?

The left kidney lies inferior and medial to the spleen.

Which one of the following statements about the spleen is false?

The spleen is located within the retroperitoneum.

The major function of the spleen is:

To filter the peripheral blood

A spleen that has migrated from its normal location is termed:

Wandering spleen