You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Oedema aquosum is seen in the following condition: and explain in detail?
If the victim is unconscious at the time of drowning, mere flooding of the lungs with water, but without formation of columns of froth occurs, which is known as oedema aquosum. Also know: Drowning fluid actually penetrates alveolar walls to enter the tissues and the blood vessels. This has been described as emphysema aquasum. It is the presumptive evidence of death from drowning. Ref: The Essentials of Forensic Medicine and Toxicology by Narayan Reddy, 27th edition, Page 326-327.