Spleen Flashcards

1
Q

Increased WBC is referred to as…?

A

Leukocytosis

Typically raised when infection is present

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2
Q

What is the normal long measurement for the spleen?

A

8-13cm

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3
Q

What is the normal volume of the spleen?

A

60-200 mL

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4
Q

What is polycythemia vera?

A

A slow growing cancer where blood marrow makes too many RBCs and thickens the blood, slowing flow, which can cause clots

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5
Q

What is sickle cell anemia?

A

Genetic mutation in African Americans which result in altered shape and phasicity of red blood cells

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6
Q

What does sickle cell anemia cause?

A

Increased blood viscosity, stasis, small vessel occlusion, infarction, and necrosis

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7
Q

In cases of portal hypertension, where does the splenic vein shunt blood?

A

Left renal vein

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8
Q

Where is polysplenia commonly found?

A

Greater curvature of the stomach

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9
Q

What is the most common benign neoplasm of the spleen?

A

Cavernous hemangioma

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10
Q

What is the most common clinical finding associated with a hemangiosarcoma involving the spleen?

A

Anemia

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11
Q

Malignancy of the spleen most commonly comes from which metastatic disease?

A

Melanoma

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12
Q

Multiple splenic infections put the patient at risk for which condition?

A

Candidiasis (m/c found in autoimmune compromised patients)

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13
Q

Hemangiosarcoma involving the spleen metastasize to which organ most commonly?

A

Liver

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14
Q

With splenomegaly, what should the sonographer also evaluate?

A

The portal vein for portal hypertension

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15
Q

With infective endocarditis, what splenic condition is associated with?

A

Abscess

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16
Q

Is it possible for a splenic infarct to cause no discomfort?

A

Yes, it is possible

17
Q

A hemangiosarcoma would appear as which ecogenicity?

A

Hyperechoic, or complex

18
Q

With granulomatosis, what sonographic finding occurs with it? (with shadowing)

A

Calcifications

19
Q

What is granulomatosis?

A

An abnormal increase in the total number of granulocytes in the blood - this occurs in response to infection

20
Q

Leukocytosis is defined as a white blood cell count above what?

A

20,000

21
Q

An elevated hematocrit would occur with which conditions?

A

Infection, dehydration, shock, and polycythemia vera.

22
Q

A decrease in hematocrit occurs in which conditions?

A

Hemorrhage, anemia, and leukemia

23
Q

What does the spleen do with hemoglobin when it’s done?

A

Recycled into iron

24
Q

What benign neoplasm is composed of lymphoid tissue?

A

Hamartoma

25
Q

What benign neoplasm is composed of epithelial tissue?

A

Adenoma