Guinea pig

From a veterinary perspective, we speak of "tumorous diseases in guinea pigs" when tissue proliferates uncontrollably in the body. This can be benign or malignant (cancer). Guinea pigs (Cavia porcellus) exhibit a spectrum of tumor types: frequently skin and subcutaneous tumors (e.g., lipomas, trichofolliculomas), relatively often changes in the mammary glands (mammary tumors), as well as diseases of the reproductive tract and lymphatic neoplasms (lymphomas). Clinically, such processes are noticeable through palpable lumps, altered skin surfaces, weight loss, decreased performance, reduced appetite, enlarged lymph nodes, respiratory problems, or nonspecific "age-related complaints." However, tumorous diseases in guinea pigs are easily overlooked because the animals instinctively compensate for impairments for a long time.