Pyogenic Abscess Flashcards
Clinical signs of pyogenic abscess
Fever Pain Pleuritis Nausea Vomiting Diarrhea
What are lab signs of pyogenic abscess
Eleveated LFTs
Leukocytosis
Anemia
what does pyogenic mean
Pus forming
what are the three routes for bacteria to gain access to the liver?
1) Biliary tree, portal vein, hepatic artery
2) Direct extension from a contiguous infection
3) hepatic trauma
what are four potential sources of infection
1) Inflammatory (Cholangitis, portal pyemia secondary to appendicitis, diverticulitis, inflammatory disease, colitis
2) Direct spread from another organ
3) trauma with direct contamination
4) infarction after embolization
What are the most common organisms
E-coli and anaerobes
what forms in 50% of patients
Multiple abscesses
what is the sonographic appearance
Variable
what is the size of pyogenic abscesses
1cm to very large
what is the most common location for an abscess to form
Right central lobe
Abecsses can range from _______ to _______
Predominantly hypoechoic (with some internal echoes) to hyperechoic
what may be seen with abscesses
Gas bubbles
what may a pyogenic abscess have
Fluid levels
what will color doppler show
Absence of flow
what do the walls appear as
typically poorly demarcated
