Final review abdomen q3 Flashcards
The normal sonographic appearance of the splenic parenchyma is what
homogeneous, hyperechoic to the liver
In the early stages of sickle cell anemia, the spleen generally appears _____ with congestion of the red pulp
enlarged
All of the following are functions of the spleen except: A) Destruction of white pulp B) Destruction of RBC C) Production of plasma cells D) Production of lymphocytes
Destruction of red blood cells
Lymph nodes emerge from the splenic hilum and course along the
splenic artery
Splenic infarction is most commonly the result of
cardiac embolic
When accessory spleens are present, they are most commonly located
near the hilum of the spleen
Which of the following causes a splenic rupture?
A) Infarction
B) Hemangioma
Hemangioma
Primary tumors that metastisize to the spleen originate from
stomach, ovaries, kidneys
The best position to evaluate the spleen is
right decubidus
Most common clinical presentation for splenic harmatoma
asymptomatic
A spleen that has migrated from its original location
wandering spleen
in the adult splenomegaly is diagnosed when the spleen measures
over 12-13cm
A chronic disease of unknown cause that involves all bone marrow elements is
polycythemia vera
The spleen is a ______ organ
intraperitoneal
The spleen is variable in size and considered to be these..
tetrahedral, triangular, orange segment
Contains Malpighian corpuscles, which are small nodular masses of lymphoid tissue
white pulp
Indicates percentage of RBC per volume of blood
hematocrit
A rapidly fatal disease that effects female infants
Neimann-Pick disease
Most common causes of granulomas
Histoplasmosis and tuberculosis
clinical findings of a splenic abscess
fever, LUQ tenderness, splenomegaly, left shoulder tenderness
Spleen is most commonly injured as a result of
blunt abdominal trauma
The only parasite that forms splenic cysts
echinoccocus
The most common benign tumor of spleen
hemangioma
hyperechoic, wedged-shaped lesion within spleen
splenic infarction
You are performing an abdominal ultrasound on a patient with histoplasmosis. What findings should you expect?
multiple bright echogenic granulomatous lesions
25 year old female w RLQ pain and nausea. RUQ appears normal. A small mass is noted in the area of the splenic hilum. This mass is isoechoic with the spleen. whats the mass
accessory spleen
48 year old male with a history of severe, acute, LUQ pain w/o trauma. You visualize a hyperechoic wedge-shaped lesion on the spleen.
splenic infarction
most common cause of splenomegaly is
portal hypertension
evaluation of spleen indicates a 1cm, rounded, echogenic mass that does not produce shadowing.
hemangioma