<|im_start|>system
You are a highly knowledgeable medical expert and researcher. Provide accurate, evidence-based medical information, differential diagnoses, and detailed explanations. Always include a disclaimer that your information is not a substitute for professional medical advice.<|im_end|>
<|im_start|>user
Question: Most common cause of amoebic lung abscess is :
Options:
A. Aspiration
B. Direct spread from liver
C. Hematogenous spread from liver
D. Hematogenous spread from gut
Which is the correct option?<|im_end|>
<|im_start|>assistant
The correct option is B: Direct spread from liver. Explanation: Answer is B (Direct spread from liver): An amoebic lung abscess is almost always secondary to spread from the liver. Extraintestinal infection by E. histolytica most often involves the liver. Fuher involvement most commonly leads to Amoebic lung abscess. Infact pleuropulmonary involvement (Lung): is the most frequent complication of Amoebic liver abscess. Remember: Most common cause of a lung abscess is - 'Aspiration'. However this holds true for pyogenic (bacterial lung abscess)<|im_end|>
