Most common extrahepatic complication of amoebic hepatitis is –
**Core Concept**
Amoebic hepatitis is caused by Entamoeba histolytica, a protozoan parasite. The extrahepatic complications of amoebic hepatitis are primarily due to the rupture of the liver abscess, which can lead to the spread of the infection to other parts of the body.
**Why the Correct Answer is Right**
The most common extrahepatic complication of amoebic hepatitis is the rupture of the liver abscess, leading to pericardial effusion, which is the accumulation of fluid in the pericardial sac surrounding the heart. This occurs when the amoebic liver abscess ruptures into the pericardial space, causing a pericardial effusion. The pericardial effusion can lead to cardiac tamponade, a life-threatening condition where the heart is compressed by the accumulated fluid, impairing its ability to pump blood effectively.
**Why Each Wrong Option is Incorrect**
**Option A:** Amoebic meningitis is a rare complication of amoebic hepatitis, usually occurring in immunocompromised individuals. It is not the most common extrahepatic complication.
**Option B:** Amoebic peritonitis is a possible complication of amoebic hepatitis, but it is not as common as pericardial effusion. It occurs when the amoeba infects the peritoneal cavity.
**Option C:** Amoebic pneumonitis is another possible complication of amoebic hepatitis, but it is not the most common extrahepatic complication. It occurs when the amoeba infects the lungs.
**Clinical Pearl / High-Yield Fact**
The rupture of the liver abscess is a medical emergency that requires prompt treatment to prevent further complications. It is essential for clinicians to be aware of the potential for pericardial effusion and cardiac tamponade in patients with amoebic hepatitis.
**Correct Answer: B. Amoebic peritonitis.