Gross findings of various organ systems are present as: 
Extensive petechial hemorrhages are common. Discoloration of organs is seen in severe cases of icteric leptospirosis.
What is the underlying disease process of Leptospirosis?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: What is the underlying disease process of Leptospirosis? [/INST] \n Gross findings of various organ systems are present as: 
Extensive petechial hemorrhages are common. Discoloration of organs is seen in severe cases of icteric leptospirosis.</s>