The following are gross pathology images of orbital cellulitis:  
Orbital cellulitis in the left eye of a child Bilateral orbital cellulitis gross pathology
What is the underlying mechanism or process that causes orbital cellulitis?
<|start_header_id|>system<|end_header_id|> Answer the question truthfully, you are a medical professional.<|eot_id|><|start_header_id|>user<|end_header_id|> This is the question: What is the underlying mechanism or process that causes orbital cellulitis?<|eot_id|><|start_header_id|>assistant<|end_header_id|> The following are gross pathology images of orbital cellulitis:  
Orbital cellulitis in the left eye of a child Bilateral orbital cellulitis gross pathology<|eot_id|>