What type of tumors is more commonly reported in fish?

Benign tumors are indeed more commonly reported in fish. This can be attributed to various environmental and biological factors inherent to aquatic species. Fish often experience a range of pressures including water quality, temperature, and exposure to pathogens, leading to the development of tumors.

While malignancy can occur in fish, benign tumors tend to be more prevalent according to veterinary studies. These benign tumors are often associated with localized growths that do not invade surrounding tissues or metastasize, which aligns with the observations made in aquatic veterinary practice.

Additionally, benign tumors in fish may manifest as cysts, papillomas, or other non-invasive growths that do not pose as significant a health risk compared to malignant tumors, which can lead to more serious health issues.

In contrast, while cystic tumors and fibromatosis can occur, they are not as commonly reported as benign tumors. This further reinforces the understanding that benign tumors are a frequent finding in fish, showcasing the need for awareness in aquatic veterinary scenarios.