🫀 Chapter 407: Liver Abscess

Nelson Textbook of Pediatrics 22nd Edition — Pyogenic liver abscess (S. aureus, Streptococcus, Gram-negatives, anaerobes) and amebic liver abscess (Entamoeba histolytica). Clinical: fever, right upper quadrant pain, hepatomegaly, elevated alkaline phosphatase. Diagnosis: ultrasound/CT, aspirate culture, amebic serology. Treatment: antibiotics + percutaneous drainage (pyogenic); metronidazole + luminal agent (amebic).

🌐 paeds.online — Pakistan's Pediatric Platform

📋 30 Clinical Scenarios — Liver Abscess

📇 High‑Yield Review Cards (Liver Abscess)

🩺 Clinical Presentations: Liver Abscess

Select a presentation for diagnostic clues and management.

📋 Stepwise Evaluation & Management of Liver Abscess

🔑 Key Principles — Liver Abscess (Nelson Ch.407)
• Pyogenic abscess: Often polymicrobial (S. aureus, Streptococcus, E. coli, Klebsiella, anaerobes). Risk factors: biliary disease, appendicitis, CRMO, immunodeficiency.
• Amebic abscess: Entamoeba histolytica. Risk: travel to endemic areas, poor sanitation. Serology (ELISA) positive, "anchovy paste" aspirate.
• Diagnosis: Ultrasound (hypoechoic lesion), CT (rim-enhancing). Aspiration for culture (pyogenic) or PCR/serology (amebic).
• Treatment — Pyogenic: Broad-spectrum antibiotics (piperacillin-tazobactam, carbapenem, or 3rd gen cephalosporin + metronidazole) + percutaneous drainage.
• Treatment — Amebic: Metronidazole (7-10 days) followed by luminal agent (paromomycin) to eradicate cysts.

    ⚡ Reflex Prompts — Liver Abscess Clinical Decisions

    📖 Liver Abscess — Core Summary (Nelson Ch.407)