The Spleen
Splenic Hematoma
A 14 year old male patient presents to the ultrasound department after falling from his bicycle. An abdominal scan reveals a complex-appearing mass within the spleen. This most likely represents a?
Accessory Spleen
A 25 year old female patient presents to the ultrasound department for a complete abdominal scan. she complains of RLQ pain and nausea. the RUQ appears normal. A small mass is noted in the area of the splenic hilum. The mass appears isoechoic to the spleen. What does this most likely represent?
Hemangioma
A 32 year old female patient presents to the ultrasound department for an abdominal scan. An evaluation of the spleen reveals 1 cm, rounded, echogenic mass that does not produces acoustic shadowing. What is the most likely diagnosis?
Multiple granulomas
A 35 year old male patient presents to the ultrasound department for an abdominal scan with a history of abdominal pain and histoplasmosis. What are you more likely to identify within the spleen?
Splenic Infarct
A 48 year old male patient with a history of severe, sudden onset of LUQ pain without trauma presents to the ultrasound department for a sonogram of the spleen. You visualize a wedge-shaped, hypoechoic area within the spleen. This most likely represents?
Hemangioma
A benign tumor composed of blood vessels
Polycythemia vera
A chronic disease of unknown causes that involves all bone marrow elements is called?
Hydatid Cyst
A complex cyst that results from the parasitic infestation of the spleen by a tapeworm is?
Hydatid Cyst
A cyst that results from the parasitic infestation of an organ by a tapeworm
Histoplasmosis
A disease that results from the inhalation of an airborne fungus that can affect the lungs and may spread to other organs
Epstein-Barr infection
A herpesvirus that can lead to infectious mononucleosis
Angiosarcoma
A rare malignant tumor of the Spleen that is derived from blood vessels
Angiosarcoma
A rare malignant tumor of the spleen that consists of blood vessels is?
Accessory Spleen
A small, round island of splenic tissue often located near the splenis hilum or near the tail of the pancreas
Sarcoidosis
A systemic disease that results in the development of granulomas throughout the body
Internal hemorrhage
An abnormal decrease in plateletsmay be the result of a(an)?
Splenic infarct
An area within the Spleen that has become necrotic because of a lack of oxygen
Splenic Infarct
An area within the spleen that has become necrotic because of a lack of oxygen is referred to as?
Bacterial Endocarditis
An infection of the surface of the heart that can spread to other organs
Sickle cell anemia
An inherited disease in which the body produces abnormally shaped red blood cells
Cirrhosis
Atrophy of the spleen may NOT be found in?
Splenomegaly
Diffuse involvement of lymphoma or leukemia of the spleen will often lead to?
Splenomegaly
Enlargement of the Spleen
A herpevirus that can lead to infectious mononucleosis in children
Epstein-Barr Infection is best described as?
Hodgkin Lymphoma
In a patient with suspected lymphoma, the presence of Reed-Sternberg cells indicates what?
Enlarged
In the early stages of sickle cell anemia, the spleen generally appears?
Splenic artery
Lymph nodes emerge from the splenic hilum and course along the?
Myleofibrosis
Massive splenomegaly is most likely the result of what?
Brain
Primary tumors that may metastasize to the spleen do NOT originate from?
Splenomegaly
Sickle cell disease will often lead to?
Granulomas
Small echogenic calcifications that result from inflammation of the tissue in that area
White pulp
Specialized lymphatic tissue within the spleen
Red pulp
Specialized tissue within the spleen that performs its phagocytic function
Cardiac Emboli
Splenic infarction is most commonly the result of what?
Subphrenic abscess
Splenomegaly may NOT result from what?
Right Decubitus
The best patient position to evaluate the spleen is?
Portal hypertension
The elevation of blood pressure within the portal venous system
Filtering peripheral blood
The major function of the spleen is?
Homogeneous and similar to the liver
The normal sonographic appearance of the splenic parenchyma is?
Erythropoiesis
The process of making red blood cells
Superomedial; inferolateral
The spleen has two components joined at the hilum; they are _____ and _____ components?
Intraperitoneal Organ
The spleen is a?
Pentagonal
The spleen is variable in size and is considered to NOT be?
Culling
The spleen removes irregular calls from the blood stream and retains them through a process called?
Superior aspect of the pancreatic body and tail
The splenic artery marks where?
Celiac Trunk
The splenic artery originates at?
Pancreas
The splenic vein courses along the posterior border of the?
Superior Mesenteric Vein
The splenic vein joins with what structure posterior to the pancreatic neck to form the portal vein?
Posterior aspect of the pancreatic body and tail
The splenic vein marks what?
White Pulp
The type of tissue within the spleen that is responsible for its lymphatic function is the?
Pericardium
What area should NOT be examined when ruling out splenic rupture?
Multiple benign granulomas
What do small echogenic foci scattered throughout the spleen most likely represent?
Destruction of phagocytic cells
What is NOT a function of the spleen?
Destruction of red blood cells
What is NOT a function of the spleen?
Pancreatitis
What is NOT associated with splenomegaly?
The spleen has a convex inferior margin and a concave superior border
What is NOT true of the spleen?
Wandering spleen
What is term is given when a spleen has migrated from its normal location?
Portal Hypertension
What is the most common cause of splenomegaly?
Echogenic
What is the most common sonographic appearance of a splenic hemangioma?
Asymptomatic
What is the most common symptom of splenic hamartoma?
Asymptomatic
What is the most likely clinical finding of a patient who has a splenic hemangioma?
Erythropoiesis
What is the process of making red blood cells is termed?
Red Pulp
What is the type of tissue within the spleen that is responsible for its phagocyte function?
Cavernous hemangioma
What may cause a splenic rupture?
Bright echoes
What sonographic signs are present in the patient with histoplasmosis?
The left kidney lies inferior and medial to the spleen
What statement describes the correct anatomic location of structures adjacent to the spleen?
Sarcoidosis
What systemic disease results in the development of granulomas within the spleen and throughout the body?
Near the hilum of the spleen
When accessory spleens are present, they are usually located where?
Splenic Hilum
Where is the most common location of an accessory spleen?