Flashcards in The Spleen Chapter 15 Deck (13):
The spleen is part of the reticuloendothelial system and is the largest single mass of ______ tissue in the body.
The spleen is a(n) _______ organ, covered with peritoneum over its entire extent except for a small area at its hilum, where the vascular structures and lymph nodes are located.
The spleen is normally measured with ultrasound on a longitudinal image from the ______ margin to the ______ margin at the long axis.
________ may occur as part of asplenic or polysplenia syndrome in association with complex cardiac malformations, bronchopulmonary abnormalities, or visceral heterotaxis.
A(n) ________ is usually found near the hilum or inferior border of the spleen but has been reported elsewhere in the abdominal cavity.
The _______ indicates the percentage of red blood cells per volume of blood.
The term _____ indicates bacteria in the bloodstream.
The increase in the number of white blood cells present in the blood that is a typical finding of infection is called ______.
Sonographically the splenic parenchyma should have a fine homogeneous _______, as is seen within the liver parenchyma.
low-level echo pattern
Systemic venous congestion is found in cardiac decompensation involving the _______ side of the heart.
In infants and children in crisis, the earlier stage of _______, the spleen is enlarged with marked congestion of the red pulp.
sickle cell anemia
Patients with hepatosplenic _______ may show irregular masses within the spleen, the "wheels-within-wheels" pattern, with outer wheel representing the ring of fibrosis surrounding the inner echogenic wheel of inflammatory cells and a central hypoechoic area.