Liver Ultrasound Normal Vs Hepatic Abscess Imaging Findings | Causes, Lab Findings & USG Features скачать в хорошем качестве

Liver Ultrasound Normal Vs Hepatic Abscess Imaging Findings | Causes, Lab Findings & USG Features

Support the channel on Patreon: patreon.com/drsamsimaginglibrary Liver Ultrasound Normal Vs Hepatic Abscess Imaging Findings | Causes, Lab Findings & USG Features Causes: Biliary tract infection (e.g., cholangitis, gallstones), Portal vein seeding (e.g., from appendicitis, diverticulitis), Hematogenous spread (sepsis, endocarditis), Direct extension (from nearby infected structures), Trauma or surgery (iatrogenic) Amebic Liver Abscess: Caused by Entamoeba histolytica (protozoa) Transmission: fecal-oral route (contaminated food/water) Common in developing countries Fungal Abscess: Seen in immunocompromised individuals (e.g., chemotherapy, transplant, HIV/AIDS) Parasitic Abscess: Echinococcus granulosus (Hydatid cyst, but can become superinfected) Signs & Symptoms: Fever (with or without chills) – most common Right upper quadrant (RUQ) abdominal pain Nausea and vomiting Anorexia and weight loss Malaise, fatigue Jaundice (in ~25% of cases, more common with biliary cause) Laboratory Findings: Leukocytosis (↑ WBC count) Elevated liver enzymes (ALT, AST, ALP) Elevated CRP and ESR Positive blood cultures (in pyogenic abscess) Serology (positive E. histolytica IgG in amoebic abscess) Pyogenic Liver Abscess: Hypoechoic or anechoic lesion Internal echoes: Due to debris, necrosis, pus, or septations. Irregular, thick walls Posterior acoustic enhancement Lack of vascularity: On color Doppler, the center is typically avascular. Can be multiloculated in some cases Gas formation within the abscess Dirty posterior acoustic shadowing (grayish shadow)